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, 0), (0, 1, 0), (1, -1, 1), (1, 1, -1)}.
A148435
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, 0), (0, 1, 0), (1, -1, 1), (1, 1, -1)}.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =5a(4) =19a(5) =65a(6) =270a(7) =1032a(8) =4492a(9) =18450a(10) =83108a(11) =357568a(12) =1646051a(13) =7303719a(14) =34129741a(15) =154802470a(16) =731344818a(17) =3371564716a(18) =16060636232a(19) =74963498719a(20) =359385701046
External references
- oeis: A148435