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 A053772 #14 May 14 2019 08:32:19 %S A053772 1,1,49,5761,476161,457113601,3439085027329,18696142934507521, %T A053772 144017748317668638721,30063679011292374997401601, %U A053772 10371304522603231166854078660609,3639433320096084212920229480292679681,18767347744724322162378748108305552459694081 %N A053772 Number of n X n binary matrices of order dividing 7 (i.e., number of solutions of X^7=I in GL(n,2)). %D A053772 V. Jovovic, The cycle index polynomials of some classical groups, Belgrade, 1995, unpublished. %H A053772 Kent E. Morrison, <a href="https://cs.uwaterloo.ca/journals/JIS/VOL9/Morrison/morrison37.html">Integer Sequences and Matrices Over Finite Fields</a>, Journal of Integer Sequences, Vol. 9 (2006), Article 06.2.1. %o A053772 (PARI) \\ See A053725 for F(n,q,k). %o A053772 F(15, 2, 7) \\ _Andrew Howroyd_, Jul 09 2018 %Y A053772 Cf. A053722, A053725, A053718. %K A053772 nonn %O A053772 1,3 %A A053772 _Vladeta Jovovic_, Mar 24 2000 %E A053772 a(12)-a(13) from _Andrew Howroyd_, Jul 09 2018