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, 0), (1, 0, 0)}.
A151048
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, 0), (1, 0, 0)}.
Terms
- a(0) =1a(1) =3a(2) =10a(3) =35a(4) =134a(5) =541a(6) =2245a(7) =9423a(8) =40264a(9) =174677a(10) =765999a(11) =3378993a(12) =15015062a(13) =67172893a(14) =302152668a(15) =1363987239a(16) =6181971004a(17) =28123733683a(18) =128357658619a(19) =587218526389
External references
- oeis: A151048