This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A137159 #2 Mar 30 2012 18:37:09
%S A137159 1,8,92,1976,84086,7173240,1227862380,421296930984,289484024512093,
%T A137159 398106386971472608,1095381029276651137560,6028986377761538637043792,
%U A137159 66373632185586959347740452492,1461497816340787260620205149915824
%N A137159 G.f.: 1 = Sum_{n>=0} a(n)*x^n/(1+x)^(8*2^n).
%C A137159 Equals unsigned column 3 of triangle A137156.
%o A137159 (PARI) {a(n)=polcoeff(1-sum(k=0, n-1, a(k)*x^k/(1+x+x*O(x^n))^(2^(k+3)) ), n)}
%Y A137159 Cf. A137156; A001192, A137157, A137158, A137160.
%K A137159 nonn
%O A137159 0,2
%A A137159 _Paul D. Hanna_, Jan 24 2008