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