Number of planar triangular n X n X n nonnegative integer grids with every similarly oriented 3 X 3 X 3 subtriangle summing to 6.
A154056
Number of planar triangular n X n X n nonnegative integer grids with every similarly oriented 3 X 3 X 3 subtriangle summing to 6.
Terms
- a(0) =462a(1) =3027a(2) =9998a(3) =20114a(4) =39391a(5) =39343a(6) =30768a(7) =18131a(8) =8308a(9) =5783a(10) =7858a(11) =5661a(12) =6349a(13) =7852a(14) =5661a(15) =5661a(16) =8702a(17) =5661a(18) =5661a(19) =7852a(20) =6349a(21) =5661a(22) =7852a(23) =5661a(24) =6349a(25) =7852a(26) =5661a(27) =5661a(28) =8702a(29) =5661
External references
- oeis: A154056