Number of planar triangular n X n X n nonnegative integer grids with mirror symmetry about one altitude with every similarly oriented 5 X 5 X 5 subtriangle summing to 10.
A154081
Number of planar triangular n X n X n nonnegative integer grids with mirror symmetry about one altitude with every similarly oriented 5 X 5 X 5 subtriangle summing to 10.
Terms
- a(0) =2772a(1) =12494a(2) =23493a(3) =40947a(4) =41096a(5) =46487a(6) =43627a(7) =32038a(8) =17016a(9) =8815a(10) =3707a(11) =2835a(12) =1541a(13) =2032a(14) =1008a(15) =876a(16) =876a(17) =832a(18) =788a(19) =744a(20) =696a(21) =696a(22) =696a(23) =696a(24) =696a(25) =696a(26) =696a(27) =696a(28) =696a(29) =696
External references
- oeis: A154081