A146015 - OEIS

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A146015

Number of n X n binary arrays with all ones connected only in a 2X4 el 1,1 1,2 1,3 1,4 2,4 with any orientation.

1, 1, 1, 29, 297, 3639, 84611, 2861167, 210769267, 22904472355, 4109900886123 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,4`
	LINKS	`Table of n, a(n) for n=1..11.`
	EXAMPLE	`Maximal 8 X 8 example` `.1.1.1.1.0.0.1.1` `.1.0.0.0.0.0.0.1` `.0.0.0.0.0.1.0.1` `.1.0.0.0.0.1.0.1` `.1.1.1.1.0.1.0.0` `.0.0.0.0.0.1.1.0` `.1.1.1.1.0.0.0.1` `.1.0.0.0.1.1.1.1`
	CROSSREFS	`Sequence in context: A244873 A125392 A126550 * A163708 A147831 A165616` `Adjacent sequences: A146012 A146013 A146014 * A146016 A146017 A146018`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin, Oct 26 2008`
	STATUS	`approved`

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Last modified December 8 13:46 EST 2023. Contains 367679 sequences. (Running on oeis4.)