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, 1), (1, 0, 1), (1, 1, 0)}.
A151084
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, 1), (1, 0, 1), (1, 1, 0)}.
Terms
- a(0) =1a(1) =3a(2) =10a(3) =43a(4) =180a(5) =794a(6) =3594a(7) =16281a(8) =75560a(9) =350968a(10) =1647376a(11) =7777248a(12) =36838962a(13) =175537404a(14) =838148510a(15) =4017672655a(16) =19303611390a(17) =92963938546a(18) =448723447926
External references
- oeis: A151084