id:A146155 - OEIS Search Results

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Number of n X n binary arrays symmetric about main diagonal with all ones connected only either as two by three or three by two blocks.

+0
1

1, 1, 1, 1, 3, 7, 14, 42, 163, 719, 3628, 22263, 164206, 1435593, 15071126, 189778079, 2837151684, 50511089269, 1077365551719, 27499985838212, 837318042012350, 30417349994865723, 1319974251781005014, 68432608866087524550 (list; graph; listen)

	OFFSET	`1,5`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.0.1.1.0.0.0` `.0.0.0.1.1.0.0.0` `.0.0.0.1.1.0.0.0` `.1.1.1.0.0.0.1.1` `.1.1.1.0.0.0.1.1` `.0.0.0.0.0.0.1.1` `.0.0.0.1.1.1.0.0` `.0.0.0.1.1.1.0.0`
	CROSSREFS	`Sequence in context: A079939 A147006 A146936 this_sequence A106363 A128658 A001203` `Adjacent sequences: A146152 A146153 A146154 this_sequence A146156 A146157 A146158`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Oct 27 2008`

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

AT&T Labs Research