Number of collinear point triples in an n X n .. X n 4-dimensional cubical grid.

A178268

Number of collinear point triples in an n X n .. X n 4-dimensional cubical grid.

Terms

    a(0) =0a(1) =0a(2) =272a(3) =2960a(4) =21680a(5) =85584a(6) =330032a(7) =916832a(8) =2402544a(9) =5543936a(10) =12188000a(11) =23612496a(12) =46235520a(13) =82329552a(14) =142808864a(15) =239006304a(16) =393144576a(17) =612427040a(18) =953341296a(19) =1420731120a(20) =2107948720a(21) =3060955376a(22) =4384446800a(23) =6098267968

External references