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, -1, -1), (-1, -1, 0), (0, 1, 0), (1, 0, 1), (1, 1, 0)}.
A151078
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, -1, -1), (-1, -1, 0), (0, 1, 0), (1, 0, 1), (1, 1, 0)}.
Terms
- a(0) =1a(1) =3a(2) =10a(3) =41a(4) =168a(5) =717a(6) =3171a(7) =14064a(8) =63793a(9) =291614a(10) =1342355a(11) =6241899a(12) =29121390a(13) =136728440a(14) =644720130a(15) =3049649696a(16) =14485085422a(17) =68965374343a(18) =329289549850
External references
- oeis: A151078