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), (0, 1, -1), (0, 1, 1), (1, 0, 1), (1, 1, 0)}.
A151195
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), (0, 1, -1), (0, 1, 1), (1, 0, 1), (1, 1, 0)}.
Terms
- a(0) =1a(1) =3a(2) =12a(3) =52a(4) =237a(5) =1099a(6) =5213a(7) =24940a(8) =120389a(9) =584838a(10) =2853373a(11) =13976063a(12) =68652709a(13) =338034589a(14) =1667756201a(15) =8241492662a(16) =40782808665a(17) =202049395507
External references
- oeis: A151195