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, -1, 1), (1, 0, 1), (1, 1, -1)}.
A150900
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, -1, 1), (1, 0, 1), (1, 1, -1)}.
Terms
- a(0) =1a(1) =2a(2) =8a(3) =34a(4) =158a(5) =740a(6) =3580a(7) =17356a(8) =85288a(9) =419548a(10) =2076994a(11) =10289214a(12) =51136938a(13) =254268828a(14) =1266516436a(15) =6310682704a(16) =31475418234a(17) =157026615060a(18) =783840256578
External references
- oeis: A150900