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A172628 Number of n X n 0..2 arrays with row sums 7 and column sums 7 1

%I #4 Mar 31 2012 12:35:40

%S 0,0,0,24,111920,2030271480,91358224634433,9350902053107858880,

%T 2018328183128437950016800,859819730886010540636567920000,

%U 682948436592331311886782349445512800

%N Number of n X n 0..2 arrays with row sums 7 and column sums 7

%H R. H. Hardin, <a href="/A172628/b172628.txt">Table of n, a(n) for n=1..21</a>

%K nonn

%O 1,4

%A _R. H. Hardin_ Feb 06 2010

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Last modified March 28 05:39 EDT 2024. Contains 371235 sequences. (Running on oeis4.)