id:A145952 - OEIS Search Results

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

+0
1

1, 1, 9, 33, 333, 7127, 205501, 11166945, 1122739259, 190153543115, 56969419979245, 30406497496961445, 28371939730808217655 (list; graph; listen)

	OFFSET	`1,3`
	EXAMPLE	`Maximal 8 X 8 example` `.0.1.0.1.1.0.0.0` `.1.1.0.0.1.1.0.0` `.1.0.0.0.0.0.1.0` `.0.1.0.1.1.0.1.1` `.0.1.1.0.1.1.0.1` `.0.0.1.0.0.0.1.0` `.1.1.0.1.1.0.1.1` `.0.1.1.0.1.1.0.1`
	CROSSREFS	`Sequence in context: A046997 A013488 A063423 this_sequence A145925 A028568 A044086` `Adjacent sequences: A145949 A145950 A145951 this_sequence A145953 A145954 A145955`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Oct 25 2008`

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Last modified November 25 08:46 EST 2009. Contains 167481 sequences.