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, 1), (0, 1, 0), (1, 1, 0)}.
A150340
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, 1), (0, 1, 0), (1, 1, 0)}.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =23a(4) =88a(5) =338a(6) =1366a(7) =5593a(8) =23464a(9) =99715a(10) =429069a(11) =1863567a(12) =8165501a(13) =36041316a(14) =160061446a(15) =714566337a(16) =3205536363a(17) =14441835139a(18) =65311558665a(19) =296338140683
External references
- oeis: A150340