A172941 - OEIS

%I #8 Oct 03 2025 00:45:34

%S 0,4,2100,21224392,1776676349670,943257597506859240,

%T 2584986583431322279831286,30994847539761067648293062000000,

%U 1417657385775947212537904178152631764244

%N Number of n X n 0..8 arrays with row sums 13 and column sums 13.

%H R. H. Hardin, <a href="/A172941/b172941.txt">Table of n, a(n) for n=1..11</a>

%K nonn

%O 1,2

%A _R. H. Hardin_, Feb 06 2010