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, -1), (1, 0, 0)}.
A150287
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, -1), (1, 0, 0)}.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =23a(4) =92a(5) =380a(6) =1630a(7) =7195a(8) =32200a(9) =145918a(10) =669934a(11) =3102919a(12) =14466977a(13) =67898824a(14) =320478114a(15) =1519165126a(16) =7229743620a(17) =34533144636a(18) =165451888585a(19) =794799824624
External references
- oeis: A150287