Number of lines through at least 2 points of a 9 X n grid of points.

Terms

a(0) =0a(1) =1a(2) =83a(3) =164a(4) =299a(5) =454a(6) =673a(7) =894a(8) =1183a(9) =1492a(10) =1855a(11) =2218a(12) =2653a(13) =3102a(14) =3623a(15) =4148a(16) =4719a(17) =5310a(18) =5973a(19) =6638a(20) =7375a(21) =8124a(22) =8923a(23) =9730a(24) =10609a(25) =11502a(26) =12459a(27) =13424a(28) =14443a(29) =15478