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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.
Table of n, a(n) for n=1..25.
A. Flammenkamp, Solutions of the no-three-in-line problem
Sequence in context: A082225 A211365 A213135 * A267500 A166542 A189711
Adjacent sequences: A037184 A037185 A037186 * A037188 A037189 A037190
N. J. A. Sloane.
There are published versions of this sequence which incorrectly give 693 instead of 675.