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, 1), (1, -1, 1), (1, 1, -1), (1, 1, 1)}.
A151015
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, 1), (1, -1, 1), (1, 1, -1), (1, 1, 1)}.
Terms
- a(0) =1a(1) =2a(2) =9a(3) =39a(4) =183a(5) =868a(6) =4197a(7) =20444a(8) =100317a(9) =494358a(10) =2444531a(11) =12116607a(12) =60169249a(13) =299205662a(14) =1489478285a(15) =7421004919a(16) =36998103731a(17) =184554402390a(18) =920984156829
External references
- oeis: A151015