Number of non-equivalent (mod D_3) ways to arrange 6 indistinguishable points on a triangular grid of side n so that no three points are collinear.
A234354
Number of non-equivalent (mod D_3) ways to arrange 6 indistinguishable points on a triangular grid of side n so that no three points are collinear.
Terms
- a(0) =1a(1) =47a(2) =1112a(3) =11743a(4) =82988a(5) =433372a(6) =1820163a(7) =6459496a(8) =20287372a(9) =57129426a(10) =147915285a(11) =356109110a(12) =804785159a(13) =1722171831
External references
- oeis: A234354