%I #7 Sep 08 2022 08:45:08
%S 1,15,50625,38443359375,6568408355712890625,
%T 252511682940423488616943359375,
%U 2184164409074570299708284437656402587890625
%N Number of n X n matrices over an alphabet of size 15.
%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="/A078185/b078185.txt">Table of n, a(n) for n = 0..25</a>
%F a(n) = 15^(n^2).
%t Table[15^(n^2), {n, 7}]
%o (Magma) [15^(n^2): n in [0..10]]; // _Vincenzo Librandi_, Jun 05 2011
%Y Cf. A076811.
%K nonn
%O 0,2
%A Vincenzo Origlio (vincenzo.origlio(AT)itc.cnr.it), Nov 21 2002