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), (0, 1, -1), (1, 0, 0), (1, 1, 1)}.
A150596
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), (0, 1, -1), (1, 0, 0), (1, 1, 1)}.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =27a(4) =107a(5) =470a(6) =2033a(7) =9086a(8) =41227a(9) =188036a(10) =872685a(11) =4059101a(12) =19039409a(13) =89808886a(14) =424989379a(15) =2022124509a(16) =9644549971a(17) =46156345590a(18) =221518673285
External references
- oeis: A150596