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, 1), (0, 0, 1), (1, 0, 1), (1, 1, 0)}.
A151125
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, 1), (0, 0, 1), (1, 0, 1), (1, 1, 0)}.
Terms
- a(0) =1a(1) =3a(2) =11a(3) =45a(4) =195a(5) =855a(6) =3859a(7) =17664a(8) =81534a(9) =380118a(10) =1785231a(11) =8421649a(12) =39941158a(13) =190204244a(14) =908487667a(15) =4353177705a(16) =20914598678a(17) =100694137234a(18) =485839187516
External references
- oeis: A151125