id:A037186 - OEIS Search Results

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Number of ways of placing 2n points on n X n grid so no 3 are in a line (solutions with symmetry about one main diagonal).

+0
2

0, 0, 0, 0, 2, 0, 1, 5, 3, 3, 6, 3, 9, 5, 13, 14, 12, 14, 16, 17, 13, 18, 34, 43, 55 (list; graph; listen)

	OFFSET	`1,5`
	REFERENCES	`A. Flammenkamp, Progress in the no-three-in-line problem, J. Combinat. Theory A 60 (1992), 305-311.` `A. Flammenkamp, Progress in the no-three-in-line problem. II. J. Combin. Theory Ser. A 81 (1998), no. 1, 108-113.`
	LINKS	`A. Flammenkamp, Solutions of the no-three-in-line problem`
	CROSSREFS	`Cf. A000769.` `Sequence in context: A079134 A163940 A112340 this_sequence A004483 A085650 A109450` `Adjacent sequences: A037183 A037184 A037185 this_sequence A037187 A037188 A037189`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified December 7 23:50 EST 2009. Contains 170430 sequences.