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%I #14 Jul 11 2024 22:23:30
%S 1,32,4608,7077888,101921587200,19725496300339200,
%T 49628717475771816345600
%N a(n) = (1/4) * (number of n X n 0..11 matrices with MM' mod 12 = I).
%F a(n) = A071302(n) * A071303(n). - _Max Alekseyev_, Nov 06 2022
%Y Cf. A003053, A071302, A071303, A071304, A071305, A071306, A071307, A071308, A071309, A071900.
%K nonn,more
%O 1,2
%A _R. H. Hardin_, Jun 11 2002
%E a(6) from _Max Alekseyev_, Nov 06 2022
%E a(7) from _Sean A. Irvine_, Jul 11 2024