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, 0), (-1, 0, -1), (-1, 1, 1), (1, 0, 1), (1, 1, 0)}.
A150694
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, 0), (-1, 0, -1), (-1, 1, 1), (1, 0, 1), (1, 1, 0)}.
Terms
- a(0) =1a(1) =2a(2) =8a(3) =26a(4) =118a(5) =438a(6) =2080a(7) =8216a(8) =39830a(9) =163110a(10) =799424a(11) =3352272a(12) =16535140a(13) =70515690a(14) =349211512a(15) =1508207086a(16) =7488678448a(17) =32664348338a(18) =162479694960a(19) =714384839432
External references
- oeis: A150694