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), (-1, 1, -1), (1, 0, 0), (1, 1, 1)}.
A150382
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), (-1, 1, -1), (1, 0, 0), (1, 1, 1)}.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =23a(4) =97a(5) =362a(6) =1649a(7) =6536a(8) =30569a(9) =125600a(10) =596745a(11) =2511105a(12) =12067235a(13) =51651250a(14) =250020285a(15) =1083877007a(16) =5274760495a(17) =23095786262a(18) =112857473645a(19) =498127671603
External references
- oeis: A150382