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A140176 Half the number of n X n symmetric binary matrices with adjacent rows differing in at most one position. 0

%I #4 Mar 31 2012 12:35:07

%S 1,3,8,17,36,71,144,289,594,1231,2602,5573,12128,26727,59668,134729,

%T 307618,709503,1652402,3883445,9206712

%N Half the number of n X n symmetric binary matrices with adjacent rows differing in at most one position.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jun 15 2008

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Last modified March 28 08:22 EDT 2024. Contains 371236 sequences. (Running on oeis4.)