Number of planar triangular n X n X n nonnegative integer grids with every similarly oriented 4 X 4 X 4 subtriangle summing to 6.

A154059

Number of planar triangular n X n X n nonnegative integer grids with every similarly oriented 4 X 4 X 4 subtriangle summing to 6.

Terms

    a(0) =5005a(1) =42379a(2) =161481a(3) =327971a(4) =465436a(5) =588412a(6) =315265a(7) =126740a(8) =40993a(9) =9833a(10) =4891a(11) =3523a(12) =2084a(13) =2080a(14) =2080a(15) =2080a(16) =2080a(17) =2080a(18) =2080a(19) =2080a(20) =2080a(21) =2080a(22) =2080a(23) =2080a(24) =2080a(25) =2080a(26) =2080a(27) =2080a(28) =2080a(29) =2080

External references