id:A140305 - OEIS Search Results

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Number of n X n binary matrices containing no more than two 1s in any 3 X 3 sub-block.

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1, 2, 11, 46, 824, 27178, 1020762, 102044420, 20297233254, 6218446852487, 3906297811846469, 4829512709969500388, 10588146860457194561192, 44163637535605999104548698 (list; graph; listen)

	OFFSET	`0,2`
	CROSSREFS	`Cf. A139810.` `Sequence in context: A037639 A000176 A042927 this_sequence A142346 A106980 A089682` `Adjacent sequences: A140302 A140303 A140304 this_sequence A140306 A140307 A140308`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), May 27 2008`

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.

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