Jeff Burch's seq and address

[zak seidov]

This message to Jeff returned,
Hope he's in this list,
and sorry to bother all you,
Zak

--- MAILER-DAEMON at yahoo.com wrote:


> Subject: failure notice

> I'm afraid I wasn't able to deliver your message to
> the following addresses.

> Date: Sat, 3 Jun 2006 07:04:23 -0700 (PDT)
> From: zak seidov <zakseidov at yahoo.com>
> Subject:  NEW SEQUENCE FROM Zak Seidov
> To: njas at research.att.com, gburch at erols.com

> 
> Neil, Jeff,
> if this interesting SEQ isn't in OEIS
> (then I ask: why?),
> I dare submit this,
> thanks, Zak
> 
> Neil, may I submit b.txt file and how?
> 
> 
> %I A000001
> %S A000001
>
22,23,222,33,25,223,27,35,2222,233,225,37,211,2223,55,213,333,227,235,22222,311,217,57,2233,219,313,2225,237,2211,335,223,22223,77,255,317,2213,2333,511,2227,319,229,2235,231,337,222222,513,2311,2217,323,257,22233,237,355,2219,711,2313,22225,3333,241,2237,517,243,329,22211,2335,713,2223,331,247,519,222223,277,3311,2255,2317,22213,357,253,22333,2511,337,22227,2319,523
> %N A000001 Merging prime factors of n-th composite
> number.
> %C A000001 Rule "replace n-th composite number by
> concatenation of its prime factors" in A037271;
> composite numbers A002808.
> %e A000001 a(6)=223 because 6th composite number is
> 12: A002808(6)=12, then 12=2*2*3 and merging prime
> factors we get a(6)=223.
> %t A000001
>
Sow[FromDigits at Flatten[Table[IntegerDigits[#[[1]]],{#[[2]]}]&/@FactorInteger@(n)]]],{n,2,115}]][[2,1]]
> %Y A000001 A002808, A037271
> %O A000001 1
> %K A000001 ,nonn,
> %A A000001 Zak Seidov, Jun 03 2006


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