puzzle

[Meeussen Wouter (bkarnd)]

in any base b:

first one= (-1 + w^p)/(w-1) + (-1 + w^q)/(w-1) + .. k terms, k<=w
second one= w^p + w^q + .. w^k 

and 'second' = 'first' * (w-1) +  k


W.


-----Original Message-----
From: Ralf Stephan [mailto:ralf at ark.in-berlin.de]
Sent: woensdag 3 maart 2004 12:13
To: seqfan at ext.jussieu.fr
Subject: puzzle


Can you prove or disprove that A073216 = A023745 + 1?

%S A023745
0,1,2,4,5,8,13,14,17,26,40,41,44,53,80,121,122,125,134,161,242,364,
%N A023745 Plaindromes: digits in base 3 are in ascending order.

%S A073216
1,2,3,5,6,9,14,15,18,27,41,42,45,54,81,122,123,126,135,162,243,365,
%N A073216 The terms of A055235 (sums of two powers of 3) divided by 2.

I must have myopia but I will write the database entry for you if
you show the beef.


ralf


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