A177196 - OEIS

%I #3 Mar 30 2012 17:30:00

%S 1,1,1,1,1,1,2,4,1,1,1,5,1,1,1,2,1,1,6,1,1,1,1,5,1,1,1,1,1,1,3,4,1,1,

%T 1,2,1,5,1,1,1,1,2,3,3,2,2,2,1,1,1,1,8,2,2,1,1,1,4,1,1,1,1,1,1,2,3,1,

%U 1,1,1,2,12,1,1,1,2,1,1,2,2,2,1,1,1,1,1,4,2,1,1,1,1,1,1,1,3,2,10,4,1,2,1,1

%N Number of distinct representations of A163143(n) as a "zipper number".

%C See A163143 for definition of "zipper number".

%H Ray Chandler, <a href="/A177196/b177196.txt">Table of n, a(n) for n=1..253</a>

%H Ray Chandler, <a href="/A177196/a177196.txt">Distinct representations of "zipper numbers" less than 1000.</a>

%e a(7)=2 since A163143(7) = 44 = 2^1*22^1 = 4^1*11^1.

%e a(8)=4 since A163143(8) = 48 = 2^3*6^1 = 3^1*16^1 = 2^1*2^3*3^1 = 2^2*2^2*3^1.

%Y Cf. A163143.

%K nonn,base

%O 1,7

%A _Ray Chandler_, May 04 2010