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, 1), (-1, 1, 1), (1, -1, 1), (1, 1, -1), (1, 1, 0)}.
A149495
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, 1), (-1, 1, 1), (1, -1, 1), (1, 1, -1), (1, 1, 0)}.
Terms
- a(0) =1a(1) =1a(2) =4a(3) =14a(4) =64a(5) =263a(6) =1264a(7) =5641a(8) =27604a(9) =128072a(10) =632378a(11) =3000389a(12) =14887097a(13) =71618136a(14) =356346004a(15) =1730063109a(16) =8622746137a(17) =42130140402a(18) =210201864844
External references
- oeis: A149495