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 A303533 #10 May 06 2018 03:53:43
%S A303533 1,1,7,225,31041,17698273,41014759873,383214694567809,
%T A303533 14378402336340492033,2162169920997910948019713,
%U A303533 1301828396408136687071569640449,3136821919822089791220365613645953025,30240714417270288646830264781681630189187073
%N A303533 Number of ordered direct sum decompositions of the vector space GF(2)^n.
%F A303533 Sum_{n>=0}a(n)x^n/g(n) = 1/(2-(Sum_{n>=0}x^n/g(n))) where g(n) = A002884(n).
%F A303533 a(n) ~ c * d^n * 2^(n^2), where d = 1.149524744759658194895953141071829185374022882216951573931... and c = 0.2546517972696293457891304601766804587838159436304512... - _Vaclav Kotesovec_, May 06 2018
%t A303533 nn = 12; \[Gamma][n_] := (q - 1)^n q^Binomial[n, 2] FunctionExpand[QFactorial[n, q]] /. q -> 2; \[CapitalGamma][z_] :=
%t A303533 Sum[z^k/\[Gamma][k], {k, 0, nn}];Table[\[Gamma][n], {n, 0, nn}] CoefficientList[Series[1/(1 - (\[CapitalGamma][z] - 1)), {z, 0, nn}], z]
%Y A303533 Cf. A270881.
%K A303533 nonn
%O A303533 0,3
%A A303533 _Geoffrey Critzer_, Apr 25 2018