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), (-1, 1, 1), (0, 0, -1), (1, 0, 0), (1, 1, 0)}.
A150363
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), (-1, 1, 1), (0, 0, -1), (1, 0, 0), (1, 1, 0)}.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =23a(4) =92a(5) =360a(6) =1515a(7) =6394a(8) =27766a(9) =121701a(10) =541389a(11) =2427628a(12) =10994962a(13) =50085884a(14) =229825960a(15) =1059427008a(16) =4909468718a(17) =22840737450a(18) =106677011512a(19) =499928196409
External references
- oeis: A150363