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), (1, 0, -1), (1, 0, 0), (1, 0, 1)}.
A150445
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), (1, 0, -1), (1, 0, 0), (1, 0, 1)}.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =24a(4) =102a(5) =416a(6) =1857a(7) =7993a(8) =36913a(9) =165863a(10) =777771a(11) =3565036a(12) =16941624a(13) =79080833a(14) =378484786a(15) =1784306317a(16) =8598616996a(17) =40930480291a(18) =198045291056a(19) =948193892470
External references
- oeis: A150445