id:A162056 - OEIS Search Results

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A162056

Number of nXn symmetric binary arrays with rows, considered as graycode numbers, in nondecreasing order

+0
1

2, 6, 18, 100, 794, 11268, 264083, 11030649, 813916625, 108554870990, 26200578482080, 11534899965771737, 9306038519940583539, 13836478621233487213306, 38099883187974152891055420 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`R. H. Hardin, Table of n, a(n) for n=1..16`
	CROSSREFS	`Sequence in context: A162062 A162063 A162064 this_sequence A056743 A064535 A128123` `Adjacent sequences: A162053 A162054 A162055 this_sequence A162057 A162058 A162059`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net) Jun 25 2009`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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