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, 1), (-1, 0, 1), (0, -1, 1), (0, 1, -1), (1, 0, 0)}.
A148114
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, 1), (-1, 0, 1), (0, -1, 1), (0, 1, -1), (1, 0, 0)}.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =4a(4) =10a(5) =29a(6) =88a(7) =287a(8) =959a(9) =3339a(10) =11879a(11) =43425a(12) =161638a(13) =612803a(14) =2358591a(15) =9197282a(16) =36298599a(17) =144732075a(18) =582562293a(19) =2364494107a(20) =9670613493a(21) =39824362354a(22) =165041369538a(23) =687914981583
External references
- oeis: A148114