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), (0, 0, -1), (0, 1, 0), (1, 0, 1), (1, 1, 1)}.
A151202
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), (0, 0, -1), (0, 1, 0), (1, 0, 1), (1, 1, 1)}.
Terms
- a(0) =1a(1) =3a(2) =12a(3) =53a(4) =244a(5) =1142a(6) =5435a(7) =26144a(8) =126718a(9) =617570a(10) =3022461a(11) =14841629a(12) =73073082a(13) =360547644a(14) =1782074892a(15) =8821006283a(16) =43715724013a(17) =216871664197
External references
- oeis: A151202