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, 0), (0, -1, 1), (1, 0, -1), (1, 1, 1)}.
A149782
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, 0), (0, -1, 1), (1, 0, -1), (1, 1, 1)}.
Terms
- a(0) =1a(1) =1a(2) =5a(3) =19a(4) =81a(5) =349a(6) =1553a(7) =7029a(8) =32325a(9) =150063a(10) =703285a(11) =3318075a(12) =15744333a(13) =75062835a(14) =359314751a(15) =1725813897a(16) =8313950559a(17) =40154297311a(18) =194373572835a(19) =942776385651
External references
- oeis: A149782