Number of ways to arrange 5 indistinguishable points on an n X n X n triangular grid so that no three points are in the same row or diagonal.
A194477
Number of ways to arrange 5 indistinguishable points on an n X n X n triangular grid so that no three points are in the same row or diagonal.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =39a(4) =909a(5) =8568a(6) =50526a(7) =221508a(8) =789453a(9) =2412333a(10) =6542316a(11) =16127397a(12) =36762726a(13) =78495417a(14) =158548572a(15) =305303544a(16) =563965038a(17) =1004432454a(18) =1732013856a(19) =2901747051a(20) =4737236427a(21) =7555075374a(22) =11796103242a(23) =18064943820a(24) =27179490195a(25) =40232239515
External references
- oeis: A194477