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 A076811 #12 Sep 08 2022 08:45:07 %S A076811 1,13,28561,10604499373,665416609183179841, %T A076811 7056410014866816666030739693, %U A076811 12646218552730347184269489080961456410641,3830224792147131369362629348887201408953937846517364173 %N A076811 Number of n X n matrices over an alphabet of size 13. %C A076811 a(n) = k^(n^2) with k = 2, 3, 4, ... counts n X n matrices over an alphabet of size k. %H A076811 Vincenzo Librandi, <a href="/A076811/b076811.txt">Table of n, a(n) for n = 0..25</a> %F A076811 a(n) = 13^(n^2). %o A076811 (Magma) [13^(n^2): n in [0..10]]; // _Vincenzo Librandi_, May 30 2011 %Y A076811 Cf. A076781, A076782. %K A076811 nonn %O A076811 0,2 %A A076811 Vincenzo Origlio (vincenzo.origlio(AT)itc.cnr.it), Nov 19 2002