mechanism for submitting new sequences is broken

[N. J. A. Sloane]

The problem with nonreply and evaporation in midsubmission from
outside the firewall certainly dates back at least to this time
yesterday.

---------- Forwarded message ----------
From: Jonathan Post <jvospost3 at gmail.com>
Date: Jun 22, 2007 4:55 PM
Subject: Fwd: Decimal digits of constant arising in 3-noncrossing RNA structures
To: njas at research.att.com

Dear Neil,

I never got an autoreply in 6 hours, to my yahoo address, when this
was submitted by form.

Don't think it's strictly "important" but is is from a recent arXiv
publication...

---------- Forwarded message ----------
From: jonathan post <jvospost2 at yahoo.com>
Date: Jun 22, 2007 10:05 AM
Subject: Decimal digits of constant arising in 3-noncrossing RNA structures
To: jvospost2 at yahoo.com, jvospost3 at gmail.com

Backup OEIS:

NEW SEQUENCE FROM Jonathan Vos Post

%I A000001
%S A000001 4, 7, 9, 1, 2, 8, 7, 8, 4, 7, 4, 7, 7, 9,
2, 0, 0, 0, 3, 2, 9, 4, 0, 2, 3, 5, 9, 6, 8, 6, 4, 0,
0, 4, 2, 4, 4, 4, 9, 2, 2, 2, 8, 2, 8, 8, 3, 8, 3, 9,
8, 5, 9, 5, 1, 3, 0, 3, 6, 2, 1, 0, 6, 1, 9, 5, 3, 4,
3, 4, 2, 1, 2, 7, 7, 3, 8, 8, 5, 4, 4, 3, 3, 0, 2, 1,
8, 0, 7, 7, 9, 7, 4, 6, 7, 2, 2, 5, 1, 6
%N A000001 Decimal digits of constant arising in
3-noncrossing RNA structures.
%C A000001 In this paper we present the asymptotic
enumeration of RNA structures with pseudoknots. We
develop a general framework for the computation of
exponential growth rate and the sub exponential
factors for k-noncrossing RNA structures. Our results
are based on the generating function for the number of
k-noncrossing RNA pseudoknot structures, S_k(n)...
where k-1 denotes the maximal size of sets of mutually
intersecting bonds. We prove a functional equation for
the generating function sum[n>= 0]S_k(n)z^n and obtain
for k=2 and k=3 the analytic continuation and singular
expansions, respectively. It is implicit in our
results that for arbitrary k singular expansions exist
and via transfer theorems of analytic combinatorics we
obtain asymptotic expression for the coefficients. We
explicitly derive the asymptotic expressions for 2-
and 3-noncrossing RNA structures. Our main result is
the derivation of the formula S_3(n) ~ ((10.4724 *
4!/(n(n-1)...(n-4))) *  ((5+sqrt(21))/2)^n.
%H A000001 Emma Y. Jin, Christian M. Reidys, <a
href="http://arxiv.org/pdf/0706.3137">Asymptotic
Enumeration of RNA Structures with Pseudoknots</a>, 21
June 2007, Theorem 5, p.15.
%F A000001 a(n) = decimal digits of (5 + sqrt(21))/2 ~
4.79128785.
%e A000001 The zeros at 15, 16, and 17 digits after
the decimal point allow for a good rational
approximation. The continued fraction is
[4,1,3,1,3,1,3, ...] = 4 +  1/(1+ 1/(3+ 1/(1+ 1/(3+
1/(1+ 1/(3+ 1(/1+ ...
%O A000001 1
%K A000001 ,cons,easy,nonn,
%A A000001 Jonathan Vos Post (jvospost2 at yahoo.com),
Jun 22 2007



PS

It seems that the trouble is that a disk on the external machine
filled up again.

But thanks to Russ Cox, it turns out that all the new sequences
and comments that were submitted are NOT lost - we have a log file
of everything!

Russ - thanks!

In the mean time the "submit new seq or comment" page is still broken.

I an leaving for two weeks on Tuesday to go to Austria,

Neil



Neil wrote:

>you should assume that all new sequences and comments
>for the past few days may have been lost

Then Neil wrote:
>But thanks to Russ Cox, it turns out that all the new sequences
>and comments that were submitted are NOT lost - we have a log file
>of everything!

And he wrote:
>In the mean time the "submit new seq or comment" page is still broken.
>
>I an leaving for two weeks on Tuesday to go to Austria,
>so this mess may not be cleared up until I return.


Just to be sure, can we assume the sequences (pre-numbered and not) and 
comments are getting to you okay if we receive the automated reply?


Thanks,
Leroy Quet



>Neil wrote:
>
>>you should assume that all new sequences and comments
>>for the past few days may have been lost
>
>Then Neil wrote:
>>But thanks to Russ Cox, it turns out that all the new sequences
>>and comments that were submitted are NOT lost - we have a log file
>>of everything!
>
>And he wrote:
>>In the mean time the "submit new seq or comment" page is still broken.
>>
>>I an leaving for two weeks on Tuesday to go to Austria,
>>so this mess may not be cleared up until I return.
>
>
>Just to be sure, can we assume the sequences (pre-numbered and not) and 
>comments are getting to you okay if we receive the automated reply?
>

Will sending you (Neil) new (important) submissions via properly 
formatted direct emails work?

(I hesitate to ask this, if as a result Neil gets a deluge of 
uninteresting sequences in his in-box while he is on vacation. I hope 
everyone uses restraint so that I need not feel guilty that I posted this 
email to seq.fan!)

Thanks,
Leroy Quet

Thanks,
Leroy



Leroy said:


Just to be sure, can we assume the sequences (pre-numbered and not) and 
comments are getting to you okay if we receive the automated reply?


Neil