Number of Sylvester-Gallai geometries on n points.

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =1a(7) =0a(8) =1a(9) =1a(10) =1a(11) =3a(12) =7a(13) =1a(14) =119a(15) =398a(16) =161925a(17) =24212890