Number of collinear point 7-tuples in an n X n .. X n 4-dimensional cubical grid.
A178272
Number of collinear point 7-tuples in an n X n .. X n 4-dimensional cubical grid.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =2080a(7) =26032a(8) =172872a(9) =813072a(10) =3044712a(11) =9667152a(12) =27131344a(13) =68725744a(14) =160984560a(15) =351148064a(16) =725480624a(17) =1421692128
External references
- oeis: A178272