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, 0), (0, 1, 0), (1, -1, 0), (1, 0, -1)}.
A148134
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, 0), (0, 1, 0), (1, -1, 0), (1, 0, -1)}.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =4a(4) =11a(5) =28a(6) =79a(7) =244a(8) =756a(9) =2414a(10) =8107a(11) =27640a(12) =95361a(13) =338751a(14) =1222567a(15) =4443525a(16) =16439284a(17) =61649195a(18) =232510867a(19) =887040112a(20) =3421223717a(21) =13262535201a(22) =51824394632a(23) =204265724147a(24) =808816950156
External references
- oeis: A148134