id:A147234 - OEIS Search Results

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Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 1101-0111-0001 pattern in any orientation.

+0
1

1, 1, 1, 1, 3, 7, 19, 49, 195, 1111, 7177, 51609, 452845, 5123643, 72369101, 1214915609, 24818665423, 626087799933, 19508645488885, 741333829643879 (list; graph; listen)

	OFFSET	`1,5`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.1.1.1.0.0.0` `.0.0.0.1.0.0.0.1` `.1.0.0.1.1.0.1.1` `.1.1.1.0.1.0.1.0` `.1.0.1.1.0.1.1.1` `.0.0.0.0.1.0.0.0` `.0.0.1.1.1.0.0.0` `.0.1.1.0.1.0.0.0`
	CROSSREFS	`Sequence in context: A017927 A116903 A151266 this_sequence A087224 A078059 A018031` `Adjacent sequences: A147231 A147232 A147233 this_sequence A147235 A147236 A147237`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Nov 04 2008`

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.

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