Number of line segments connecting exactly 10 points in an n x n grid of points.

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =0a(8) =0a(9) =22a(10) =52a(11) =90a(12) =136a(13) =190a(14) =252a(15) =322a(16) =400a(17) =486a(18) =620a(19) =770a(20) =936a(21) =1118a(22) =1316a(23) =1530a(24) =1760a(25) =2006a(26) =2268a(27) =2662a(28) =3088a(29) =3546