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, 1, 1), (1, 0, -1), (1, 0, 0), (1, 1, 0)}.
A150379
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, 1, 1), (1, 0, -1), (1, 0, 0), (1, 1, 0)}.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =23a(4) =96a(5) =370a(6) =1643a(7) =6824a(8) =31221a(9) =135436a(10) =631150a(11) =2817122a(12) =13290164a(13) =60514837a(14) =287997406a(15) =1330702476a(16) =6374589927a(17) =29784488597a(18) =143405492880a(19) =675927722056
External references
- oeis: A150379