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 A053862 #13 Jul 09 2018 20:01:32 %S A053862 1,1,5761,31334401,136768389121,820260207643852801, %T A053862 18335066086016219275591681,328113739821565326934355528908801, %U A053862 13331506915406061943466437913131131863041,709215733340453866919693651825288232662162472960001,51979148071106263356020510647871238516054065671329809222860801 %N A053862 Number of n X n matrices over GF(4) of order dividing 7 (i.e., number of solutions of X^7=I in GL(n,4)). %D A053862 V. Jovovic, The cycle index polynomials of some classical groups, Belgrade, 1995, unpublished. %H A053862 Kent E. Morrison, <a href="http://www.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 A053862 (PARI) \\ See A053725 for F(n,q,k). %o A053862 F(12, 4, 7) \\ _Andrew Howroyd_, Jul 09 2018 %Y A053862 Cf. A053725, A053772, A053856. %K A053862 nonn %O A053862 1,3 %A A053862 _Vladeta Jovovic_, Mar 28 2000 %E A053862 a(8)-a(11) from _Andrew Howroyd_, Jul 09 2018