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 A053651 #24 Jan 10 2022 03:45:36
%S A053651 1,3,5,8,13,18,27,37,51,70,96,130,176,232,296,380,490,620,793,1019,
%T A053651 1277,1624
%N A053651 Number of nonisomorphic cyclic subgroups of general linear group GL(n,2).
%D A053651 V. Jovovic, The cycle index polynomials of some classical groups, Belgrade, 1995, unpublished.
%H A053651 Sean A. Irvine, <a href="https://github.com/archmageirvine/joeis/blob/master/src/irvine/oeis/a053/A053651.java">Java program</a> (github)
%e A053651 a(5)=13 because the orders of the elements of GL(5,2) are {1,2,3,4,5,6,7,8,12,14,15,21,31}.
%Y A053651 Cf. A053658 (for GL(n,3)), A053660 (for GL(n, 4)).
%Y A053651 Cf. A062766 (for AGL(n,2)).
%K A053651 nonn,more
%O A053651 1,2
%A A053651 _Vladeta Jovovic_, Mar 22 2000
%E A053651 a(15)-a(22) from _Sean A. Irvine_, Jan 10 2022