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, 1, 1), (1, 0, 0), (1, 0, 1)}.
A151082
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, 1, 1), (1, 0, 0), (1, 0, 1)}.
Terms
- a(0) =1a(1) =3a(2) =10a(3) =41a(4) =173a(5) =759a(6) =3397a(7) =15544a(8) =71901a(9) =335279a(10) =1578727a(11) =7477889a(12) =35591302a(13) =170128077a(14) =816596947a(15) =3930930312a(16) =18972648915a(17) =91803771609a(18) =445155659067
External references
- oeis: A151082