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 A321357 #8 Nov 07 2018 21:44:57
%S A321357 1,5,10,10,5,26,125,250,250,125,325,1500,3000,3000,1500,2600,11500,
%T A321357 23000,23000,11500,14950,63250,126500,126500,63250,65905,266275,
%U A321357 532550,532550,266275,233480,901125,1802250,1802250,901125,698425,2591000,5182000,5182000,2591000
%N A321357 Expansion of Product_{k>=0} (1 + x^(5^k))^(5^(k+1)).
%C A321357 Also the coefficient of x^(5*n) in the expansion of Product_{k>=0} (1 + x^(5^k))^(5^k).
%e A321357 Product_{k>=0} (1 + x^(5^k))^(5^k) = 1 + x + 5*x^5 + 5*x^6 + 10*x^10 + 10*x^11 + 10*x^15 + 10*x^16 + 5*x^20 + 5*x^21 + 26*x^25 + 26*x^26 + ... .
%Y A321357 Cf. A073708, A321354, A321355.
%K A321357 nonn
%O A321357 0,2
%A A321357 _Seiichi Manyama_, Nov 07 2018