id:A147065 - OEIS Search Results

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Number of n X n binary arrays symmetric under 90 degree rotation with all ones connected only in a 01010-11111 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 1, 4, 7, 20, 27, 84, 153, 692, 1605, 7549, 19036, 103045, 315223, 2201412, 8341738, 68161042, 299153867, 2851751081, 14915115066 (list; graph; listen)

	OFFSET	`1,7`
	EXAMPLE	`Maximal 8 X 8 example` `.0.1.0.0.1.0.1.0` `.1.1.0.1.1.1.1.1` `.0.1.0.0.0.0.0.0` `.1.1.0.0.0.0.1.0` `.0.1.0.0.0.0.1.1` `.0.0.0.0.0.0.1.0` `.1.1.1.1.1.0.1.1` `.0.1.0.1.0.0.1.0`
	CROSSREFS	`Sequence in context: A045548 A090879 A084404 this_sequence A049947 A066345 A026570` `Adjacent sequences: A147062 A147063 A147064 this_sequence A147066 A147067 A147068`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Nov 04 2008`

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Last modified March 12 14:30 EST 2010. Contains 173097 sequences.

AT&T Labs Research