id:A147321 - 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 00100-00100-00100-11111 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 1, 3, 7, 16, 39, 109, 339, 1359, 6341, 32204, 186717, 1250465, 9543435, 82560858, 815884422, 9279731421, 121699162939, 1834559945393, 31585819621707 (list; graph; listen)

	OFFSET	`1,7`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.0.0.0.0.0.0` `.0.0.0.0.0.0.0.1` `.0.0.0.0.0.0.0.1` `.0.0.0.0.1.1.1.1` `.0.0.0.1.0.0.0.1` `.0.0.0.1.0.0.0.1` `.0.0.0.1.0.0.0.0` `.0.1.1.1.1.1.0.0`
	CROSSREFS	`Sequence in context: A152090 A014140 A103439 this_sequence A103030 A001698 A029761` `Adjacent sequences: A147318 A147319 A147320 this_sequence A147322 A147323 A147324`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net)`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

AT&T Labs Research