id:A146858 - 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 1101-0111-0100 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 5, 17, 43, 153, 711, 4787, 36997, 323223, 3456487, 47029493, 778875019, 15666901145, 390119856899, 11978383979491, 447614381910255, 20341843546977767 (list; graph; listen)

	OFFSET	`1,6`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.1.0.1.1.0.0` `.0.0.1.1.1.0.0.0` `.1.1.0.0.1.0.0.1` `.0.1.0.0.0.1.1.1` `.1.1.1.0.0.0.1.0` `.1.0.0.1.0.0.1.1` `.0.0.0.1.1.1.0.0` `.0.0.1.1.0.1.0.0`
	CROSSREFS	`Sequence in context: A046916 A089527 A146778 this_sequence A146183 A163424 A099451` `Adjacent sequences: A146855 A146856 A146857 this_sequence A146859 A146860 A146861`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Nov 04 2008`

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

AT&T Labs Research