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1/10 of the number of 10-colorings of an n X n array symmetric about main diagonal.
0

%I #3 Mar 31 2012 12:35:08

%S 1,81,53217,283593393,12258075782601,4297629494449269153,

%T 12221263772988733500680961,281892642133040615422671776068833,

%U 52738993750936114896985550720064788375625

%N 1/10 of the number of 10-colorings of an n X n array symmetric about main diagonal.

%K nonn

%O 1,2

%A _R. H. Hardin_, Oct 05 2008