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), (0, 1, -1), (0, 1, 0), (1, 0, -1), (1, 1, 1)}.
A150593
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), (0, 1, -1), (0, 1, 0), (1, 0, -1), (1, 1, 1)}.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =27a(4) =105a(5) =434a(6) =1823a(7) =7806a(8) =33899a(9) =148480a(10) =656977a(11) =2924911a(12) =13103957a(13) =58999404a(14) =266766771a(15) =1210995905a(16) =5514878065a(17) =25192059976a(18) =115378537393a(19) =529692971635
External references
- oeis: A150593