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, 0, 0), (0, -1, 1), (0, 0, 1), (1, 1, 0)}.
A150230
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, 0, 0), (0, -1, 1), (0, 0, 1), (1, 1, 0)}.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =22a(4) =80a(5) =313a(6) =1259a(7) =5124a(8) =21435a(9) =90406a(10) =385474a(11) =1662597a(12) =7209353a(13) =31504664a(14) =138446422a(15) =611070712a(16) =2710897905a(17) =12068159661a(18) =53915063043a(19) =241675935311
External references
- oeis: A150230