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, 1, 1), (0, 0, 1), (0, 1, -1), (1, 0, 0)}.
A150110
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, 1, 1), (0, 0, 1), (0, 1, -1), (1, 0, 0)}.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =19a(4) =69a(5) =266a(6) =1064a(7) =4363a(8) =18277a(9) =77918a(10) =336500a(11) =1468192a(12) =6462863a(13) =28663461a(14) =127926470a(15) =574016728a(16) =2587773401a(17) =11714398489a(18) =53221797551a(19) =242580513410
External references
- oeis: A150110