Number of ways to arrange 7 indistinguishable points on an n X n X n triangular grid so that no three points are in the same row or diagonal.
A194479
Number of ways to arrange 7 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) =0a(4) =15a(5) =3525a(6) =98473a(7) =1237434a(8) =9821400a(9) =57367112a(10) =268378248a(11) =1059987987a(12) =3661533037a(13) =11341971885a(14) =32090198922a(15) =84099053568a(16) =206386405560a(17) =478423135296
External references
- oeis: A194479