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), (1, 0, 1), (1, 1, -1), (1, 1, 0)}.
A150790
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), (1, 0, 1), (1, 1, -1), (1, 1, 0)}.
Terms
- a(0) =1a(1) =2a(2) =8a(3) =30a(4) =137a(5) =588a(6) =2806a(7) =12733a(8) =61872a(9) =289164a(10) =1418356a(11) =6747493a(12) =33281782a(13) =160181469a(14) =792919129a(15) =3847160244a(16) =19089911001a(17) =93165068531a(18) =463075455779
External references
- oeis: A150790