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 A063410 #7 May 10 2013 12:44:50
%S A063410 0,0,64,7680,634880,4555898880,36661900345344,199424098393128960,
%T A063410 5767554639734568386560,2536966895379879201142210560,
%U A063410 884897682352177233989316141645824
%N A063410 Number of cyclic subgroups of order 7 of general affine group AGL(n,2).
%C A063410 Number of cyclic subgroups of order m in general affine group AGL(n,2) is 1/phi(m)*Sum_{d|m} mu(m/d)*b(n,d), where b(n,d) is number of solutions to x^d=1 in AGL(n,2).
%H A063410 V. Jovovic, <a href="/A062766/a062766.pdf">Cycle index of general affine group AGL(n,2)</a>
%F A063410 a(n) = (A063390(n)-1)/6.
%Y A063410 Cf. A063406-A063413, A063385-A063393, A062710.
%K A063410 nonn
%O A063410 1,3
%A A063410 _Vladeta Jovovic_, Jul 17 2001