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%I #11 Jul 03 2018 02:26:09
%S 1,76,80704,1333866496,350423140532224,1470575268235571101696,
%T 98701955014599602193609785344,
%U 105983992373769699116787162453121171456,1820806479557691387021584007269972378727328251904
%N Singular n X n matrices over GF(4).
%H Harry J. Smith, <a href="/A060716/b060716.txt">Table of n, a(n) for n = 1..40</a>
%F For n >= 1, a(n) = 4^(n^2) - A053291(n) = 4^(n^2) - (4^n - 1)*(4^n - 4)*...*(4^n - 4^(n-1)).
%p for n from 1 to 15 do printf(`%d,`, 4^(n^2) - product(4^n-4^j, j=0..n-1)) od:
%o (PARI) a(n)={4^(n^2) - prod(j=0, n - 1, 4^n - 4^j)} \\ _Harry J. Smith_, Jul 10 2009
%Y Cf. A053291.
%K nonn
%O 1,2
%A Avi Peretz (njk(AT)netvision.net.il), Apr 21 2001
%E More terms from _James A. Sellers_, Apr 24 2001
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