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, 1, 0), (1, 0, 0), (1, 0, 1)}.
A151092
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, 1, 0), (1, 0, 0), (1, 0, 1)}.
Terms
- a(0) =1a(1) =3a(2) =11a(3) =43a(4) =175a(5) =756a(6) =3305a(7) =14745a(8) =66861a(9) =305534a(10) =1412043a(11) =6564204a(12) =30697806a(13) =144406873a(14) =681755516a(15) =3232121308a(16) =15373877114a(17) =73328686004a(18) =350744115090
External references
- oeis: A151092