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 A276526 #8 Nov 16 2016 03:03:30
%S A276526 1,0,1,-1,2,-2,3,-4,7,-8,11,-15,22,-27,37,-51,70,-90,121,-162,220,
%T A276526 -288,381,-512,688,-902,1197,-1598,2127,-2809,3722,-4949,6581,-8699,
%U A276526 11519,-15301,20305,-26862,35581,-47208,62591,-82859,109756,-145506,192856,-255388
%N A276526 Expansion of Product_{k>=1} 1/(1 - x^(2*k) + x^(3*k)).
%H A276526 Vaclav Kotesovec, <a href="/A276526/b276526.txt">Table of n, a(n) for n = 0..1000</a>
%F A276526 a(n) ~ c * p / r^n, where r = -A075778 = -0.7548776662466927600495... is the real root of the equation r^3 - r^2 + 1 = 0, p = Product_{n>1} 1/(1 - r^(2*n) + r^(3*n)) = 1.9844809074648434... and c = 0.41149558866264576338190038... is the real root of the equation -1 + 8*c - 23*c^2 + 23*c^3 = 0.
%t A276526 nmax = 50; CoefficientList[Series[1/Product[1-x^(2*k)+x^(3*k), {k, 1, nmax}], {x, 0, nmax}], x]
%Y A276526 Cf. A264905, A266686, A275820, A275821, A276519.
%K A276526 sign
%O A276526 0,5
%A A276526 _Vaclav Kotesovec_, Nov 16 2016