id:A153996 - OEIS Search Results

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Number of planar n X n X n binary triangular grids symmetric both under 120 degree rotation and reflection with no more than 11 ones in any 5 X 5 X 5 subtriangle.

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1, 2, 2, 4, 8, 12, 26, 101, 183, 703, 2877, 10411, 40654, 329616, 1193895, 9029186, 73784076, 520396717, 3984125165, 63450006981, 453313410587, 6773173674923, 109501240761989, 1529036617116906, 23146045371160181, 731081927354538564 (list; graph; listen)

	OFFSET	`0,2`
	CROSSREFS	`Sequence in context: A048114 A102456 A032067 this_sequence A123024 A079092 A039941` `Adjacent sequences: A153993 A153994 A153995 this_sequence A153997 A153998 A153999`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net) Jan 04 2009`

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.

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