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), (0, 1, -1), (1, 0, 1), (1, 1, -1), (1, 1, 0)}.
A150602
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), (0, 1, -1), (1, 0, 1), (1, 1, -1), (1, 1, 0)}.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =27a(4) =110a(5) =471a(6) =2074a(7) =9324a(8) =42575a(9) =196711a(10) =917630a(11) =4312657a(12) =20395616a(13) =96955941a(14) =462904953a(15) =2218328161a(16) =10664452192a(17) =51410836565a(18) =248439068290
External references
- oeis: A150602