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A172543 Number of n X n 0..1 arrays with row sums 15 and column sums 15. 1

%I #6 Apr 11 2017 16:38:02

%S 0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,20922789888000,

%T 10268902998771351157327104000,

%U 2767806480542211571651550187279222472704000

%N Number of n X n 0..1 arrays with row sums 15 and column sums 15.

%H R. H. Hardin, <a href="/A172543/b172543.txt">Table of n, a(n) for n=1..20</a>

%Y Column k=15 of A008300.

%K nonn

%O 1,16

%A _R. H. Hardin_, Feb 06 2010

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Last modified July 27 12:37 EDT 2024. Contains 374647 sequences. (Running on oeis4.)