id:A140304 - OEIS Search Results

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Number of n X n binary matrices with no more than one 1 in any 3 X 3 sub-block.

+0
1

1, 2, 5, 10, 60, 437, 2875, 36409, 704468, 14783959, 461938624, 22488554884, 1378748967395, 115759328877461, 14408020654986447, 2435526103569141336, 559083220302137929773, 182904062593977747117174, 83283166161035345074485948, 52012981990902321891650583747, 45449967513840995133445585972949 (list; graph; listen)

	OFFSET	`0,2`
	CROSSREFS	`Cf. A139810.` `Sequence in context: A020755 A018503 A018535 this_sequence A018549 A053356 A018584` `Adjacent sequences: A140301 A140302 A140303 this_sequence A140305 A140306 A140307`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), May 27 2008`

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Last modified December 13 23:45 EST 2009. Contains 170824 sequences.

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