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 A270662 #5 Mar 21 2016 06:41:45
%S A270662 1,1,2,11,48,341,2640,23561,228816,2674153,32749200,440019469,
%T A270662 6504919080,102077649805,1724124159576,31359633592769,596774321099040,
%U A270662 12048020039472209,259300490127149664,5798531237450331797,136619813565630980280,3380131718416134261301
%N A270662 E.g.f.: Product_{k>=1} (1 + sin(x^k)).
%H A270662 Vaclav Kotesovec, <a href="/A270662/b270662.txt">Table of n, a(n) for n = 0..440</a>
%t A270662 nmax = 25; Range[0, nmax]! * CoefficientList[Series[Product[1+Sin[x^k], {k, 1, nmax}], {x, 0, nmax}], x]
%Y A270662 Cf. A000262, A229263, A270294, A270663.
%K A270662 nonn
%O A270662 0,3
%A A270662 _Vaclav Kotesovec_, Mar 21 2016