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 A300582 #7 Dec 10 2023 18:13:17
%S A300582 1,6,48,312,2064,12768,79680,484224,2947584,17783808,107268096,
%T A300582 644960256,3877367808,23282294784,139790696448,838984925184,
%U A300582 5035133042688,30213857476608,181298502303744,1087829443608576,6527166069080064,39163476131708928,234983177934864384
%N A300582 Expansion of Product_{k>=1} 1 / (1 - 3*2^k*x^k).
%F A300582 a(n) ~ c * 6^n, where c = 1/QPochhammer(1/3) = 1.7853123419985341903674862960137...
%t A300582 nmax = 25; CoefficientList[Series[Product[1/(1-3*2^k*x^k), {k, 1, nmax}], {x, 0, nmax}], x]
%Y A300582 Cf. A070933, A300583.
%K A300582 nonn
%O A300582 0,2
%A A300582 _Vaclav Kotesovec_, Mar 09 2018