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), (0, 0, 1), (1, 0, 0), (1, 1, 1)}.
A151119
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), (0, 0, 1), (1, 0, 0), (1, 1, 1)}.
Terms
- a(0) =1a(1) =3a(2) =11a(3) =45a(4) =193a(5) =856a(6) =3879a(7) =17876a(8) =83278a(9) =391526a(10) =1853274a(11) =8821865a(12) =42188173a(13) =202532928a(14) =975478800a(15) =4711439386a(16) =22810719846a(17) =110672632168a(18) =537957768862
External references
- oeis: A151119