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A093469 Number of 6 X 6 binary matrices with n ones, distinct up to cyclic shifts of rows and/or columns; reflection through any vertical or horizontal axis; and reflection through the main diagonal. Also number of quasi-n-ominoes on a torus divided into a 6 X 6 grid. 1

%I #4 Mar 31 2012 10:32:25

%S 1,1,9,40,282,1455,7278,29849,107399,330369,890152,2096153,4364470,

%T 8045195,13215574,19368689,25423509,29898089,31566122,29898089,

%U 25423509,19368689,13215574,8045195,4364470,2096153,890152,330369,107399,29849

%N Number of 6 X 6 binary matrices with n ones, distinct up to cyclic shifts of rows and/or columns; reflection through any vertical or horizontal axis; and reflection through the main diagonal. Also number of quasi-n-ominoes on a torus divided into a 6 X 6 grid.

%K nonn

%O 0,3

%A _Jon Wild_, May 21, 2004

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Last modified April 18 22:18 EDT 2024. Contains 371782 sequences. (Running on oeis4.)