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, 0, 0), (-1, 0, 1), (1, -1, -1), (1, 1, 0)}.
A149095
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, 0, 0), (-1, 0, 1), (1, -1, -1), (1, 1, 0)}.
Terms
- a(0) =1a(1) =1a(2) =4a(3) =8a(4) =33a(5) =85a(6) =368a(7) =1075a(8) =4774a(9) =15159a(10) =68370a(11) =229628a(12) =1048399a(13) =3667970a(14) =16896447a(15) =61004046a(16) =282975372a(17) =1047379521a(18) =4885687465a(19) =18452896178a(20) =86471544959a(21) =332130134949
External references
- oeis: A149095