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), (0, 1, 1), (1, 0, 1), (1, 1, -1), (1, 1, 0)}.
A151200
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), (0, 1, 1), (1, 0, 1), (1, 1, -1), (1, 1, 0)}.
Terms
- a(0) =1a(1) =3a(2) =12a(3) =53a(4) =242a(5) =1138a(6) =5434a(7) =26199a(8) =127376a(9) =622268a(10) =3053438a(11) =15029014a(12) =74157258a(13) =366653302a(14) =1815673654a(15) =9003329553a(16) =44692323636a(17) =222054482004
External references
- oeis: A151200