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, 1), (-1, 0, 1), (-1, 1, 0), (1, 0, 0)}.
A148510
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, 1), (-1, 0, 1), (-1, 1, 0), (1, 0, 0)}.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =5a(4) =17a(5) =34a(6) =131a(7) =293a(8) =1193a(9) =2846a(10) =11849a(11) =29446a(12) =125418a(13) =321788a(14) =1397379a(15) =3676149a(16) =16136815a(17) =43251008a(18) =191531227a(19) =521232376a(20) =2328712424a(21) =6420749688a(22) =28872313915a(23) =80469169189a(24) =363621787823
External references
- oeis: A148510