id:A146806 - OEIS Search Results

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Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 0110-1100-0111 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 13, 47, 229, 1275, 4761, 35421, 393783, 4470765, 65085801, 1244085727 (list; graph; listen)

	OFFSET	`1,6`
	EXAMPLE	`Maximal 8 X 8 example` `.0.1.0.0.1.1.1.0` `.1.1.1.0.0.0.1.1` `.1.0.1.0.0.1.1.0` `.1.0.0.0.0.0.0.0` `.0.0.0.0.0.0.0.1` `.0.1.1.0.0.1.0.1` `.1.1.0.0.0.1.1.1` `.0.1.1.1.0.0.1.0`
	CROSSREFS	`Sequence in context: A113943 A004467 A141865 this_sequence A135712 A027980 A013200` `Adjacent sequences: A146803 A146804 A146805 this_sequence A146807 A146808 A146809`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Nov 04 2008`

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Last modified December 18 21:37 EST 2009. Contains 171024 sequences.