Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, 0, 1), (0, -1, 1), (0, 0, 1), (0, 1, -1), (1, 0, 1)}.
A150498
Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, 0, 1), (0, -1, 1), (0, 0, 1), (0, 1, -1), (1, 0, 1)}.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =25a(4) =101a(5) =411a(6) =1765a(7) =7634a(8) =33937a(9) =151795a(10) =689785a(11) =3150706a(12) =14535584a(13) =67347703a(14) =314150794a(15) =1470643876a(16) =6917791613a(17) =32638195555a(18) =154543156262a(19) =733609775876
External references
- oeis: A150498