id:A146999 - OEIS Search Results

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Number of n X n binary arrays symmetric about both diagonal and antidiagonal with all ones connected only in a 00100-00100-11111 pattern in any orientation.

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1

1, 1, 1, 1, 1, 1, 2, 3, 5, 7, 13, 19, 53, 121, 389, 940, 3064, 7695, 29728, 97515, 493327, 1920641, 10778992, 46183271, 290012194, 1476840183, 11445253811 (list; graph; listen)

	OFFSET	`1,7`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.1.1.1.1.1.0` `.0.0.0.0.1.0.0.1` `.1.0.0.0.1.0.0.1` `.1.0.0.0.0.1.1.1` `.1.1.1.0.0.0.0.1` `.1.0.0.1.0.0.0.1` `.1.0.0.1.0.0.0.0` `.0.1.1.1.1.1.0.0`
	CROSSREFS	`Sequence in context: A008965 A113864 A108310 this_sequence A147485 A104189 A119717` `Adjacent sequences: A146996 A146997 A146998 this_sequence A147000 A147001 A147002`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Nov 04 2008`

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Last modified November 27 14:50 EST 2009. Contains 167570 sequences.

AT&T Labs Research