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), (0, 1, -1), (1, 0, 0), (1, 0, 1), (1, 1, 1)}.
A151194
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), (0, 1, -1), (1, 0, 0), (1, 0, 1), (1, 1, 1)}.
Terms
- a(0) =1a(1) =3a(2) =12a(3) =52a(4) =236a(5) =1104a(6) =5255a(7) =25258a(8) =122517a(9) =597523a(10) =2927164a(11) =14390575a(12) =70929570a(13) =350370404a(14) =1733729284a(15) =8590957790a(16) =42620537970a(17) =211650096119
External references
- oeis: A151194