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, 0, 1), (0, 0, 1), (0, 1, -1), (1, 0, 1)}.
A150396
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, 0, 1), (0, 0, 1), (0, 1, -1), (1, 0, 1)}.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =24a(4) =92a(5) =361a(6) =1475a(7) =6134a(8) =26003a(9) =111652a(10) =484831a(11) =2123974a(12) =9376383a(13) =41655965a(14) =186092797a(15) =835332330a(16) =3765485210a(17) =17037280894a(18) =77343518126a(19) =352162305344
External references
- oeis: A150396