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 A053848 #14 May 14 2019 04:03:53 %S A053848 2,20,1640,901424,1333386848,9762556479680,552311189659544960, %T A053848 178664076508334107310336,177339376736100844376103875072, %U A053848 928195308949863753322027981355832320,37279296908672313898400994512625009709475840 %N A053848 Number of n X n matrices over GF(3) of order dividing 4 (i.e., number of solutions of X^4=I in GL(n,3)). %D A053848 V. Jovovic, The cycle index polynomials of some classical groups, Belgrade, 1995, unpublished. %H A053848 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 A053848 (PARI) \\ See A053725 for F(n,q,k). %o A053848 F(12, 3, 4) \\ _Andrew Howroyd_, Jul 09 2018 %Y A053848 Cf. A053718, A053725, A053846. %K A053848 nonn %O A053848 1,1 %A A053848 _Vladeta Jovovic_, Mar 28 2000 %E A053848 a(10)-a(11) from _Andrew Howroyd_, Jul 09 2018