**No-3-in-line problem: number of inequivalent ways of placing 2n points on n X n grid so no 3 are in a line.**

*0, 1, 1, 4, 5, 11, 22, 57, 51, 156, 158, 566, 499, 1366, 3978, 5900, 7094, 1920*

*3 seqfan posts*

*Tue May 25 19:29:31 CEST 2010* [seqfan] Re: A000769 No-3-in-line problem: number of ways of placing 2n points on n X n grid so no 3 are in a line.

*Tue May 25 19:29:31 CEST 2010* [seqfan] Re: A000769 No-3-in-line problem: number of ways of placing 2n points on n X n grid so no 3 are in a line.

*Tue May 25 15:07:02 CEST 2010* [seqfan] A000769 No-3-in-line problem: number of ways of placing 2n points on n X n grid so no 3 are in a line.

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