Number of ways to arrange 7 indistinguishable points on an n X n X n triangular grid so that no three points are collinear at any angle.
A194135
Number of ways to arrange 7 indistinguishable points on an n X n X n triangular grid so that no three points are collinear at any angle.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =9a(5) =1875a(6) =52323a(7) =695616a(8) =5840088a(9) =35715529a(10) =172520643a(11) =708871152a(12) =2517687856a(13) =8023634766a(14) =23292994812a(15) =62357664744a(16) =155765126265a(17) =367482996726a(18) =822866800569
External references
- oeis: A194135