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, 1, -1), (0, 1, 1), (1, 0, 1), (1, 1, 0)}.
A151201
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, 1, -1), (0, 1, 1), (1, 0, 1), (1, 1, 0)}.
Terms
- a(0) =1a(1) =3a(2) =12a(3) =53a(4) =243a(5) =1141a(6) =5459a(7) =26346a(8) =128168a(9) =626971a(10) =3078529a(11) =15165364a(12) =74884171a(13) =370462126a(14) =1835612406a(15) =9106519567a(16) =45224396045a(17) =224785228719
External references
- oeis: A151201