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, 0), (0, -1, 0), (0, 1, -1), (0, 1, 1), (1, 0, 1)}.
A150797
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, 0), (0, -1, 0), (0, 1, -1), (0, 1, 1), (1, 0, 1)}.
Terms
- a(0) =1a(1) =2a(2) =8a(3) =31a(4) =131a(5) =569a(6) =2555a(7) =11578a(8) =53466a(9) =248535a(10) =1167984a(11) =5512501a(12) =26206482a(13) =124984773a(14) =599074589a(15) =2878285752a(16) =13879661295a(17) =67055935483a(18) =324857576712
External references
- oeis: A150797