Number of 4 X 4 X 4 triangular 0..n arrays with some element less than a w, nw or ne neighbor exactly once.
A271036
Number of 4 X 4 X 4 triangular 0..n arrays with some element less than a w, nw or ne neighbor exactly once.
Terms
- a(0) =34a(1) =450a(2) =3114a(3) =15116a(4) =58036a(5) =188034a(6) =535106a(7) =1373944a(8) =3244098a(9) =7143708a(10) =14829100a(11) =29262168a(12) =55258840a(13) =100405196a(14) =176323116a(15) =300384832a(16) =497995586a(17) =805585902a(18) =1274479910a(19) =1975833860a(20) =3006869580a(21) =4498661310a(22) =6625771230a(23) =9618069240
External references
- oeis: A271036