Number of ways to arrange 6 indistinguishable points on an n X n X n triangular grid so that no three points are in the same row or diagonal.
A194478
Number of ways to arrange 6 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) =1a(4) =337a(5) =8733a(6) =96478a(7) =668028a(8) =3413828a(9) =14054915a(10) =49171641a(11) =151422970a(12) =420674150a(13) =1073422309a(14) =2550004472a(15) =5699074284a(16) =12082541388a(17) =24462528078a(18) =47555986746a(19) =89173692795a(20) =161899772067a(21) =285517344145a(22) =490447009030
External references
- oeis: A194478