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, 0, 1), (-1, 1, 0), (1, -1, -1), (1, 1, 0)}.
A149096
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, 0, 1), (-1, 1, 0), (1, -1, -1), (1, 1, 0)}.
Terms
- a(0) =1a(1) =1a(2) =4a(3) =8a(4) =33a(5) =85a(6) =368a(7) =1075a(8) =4794a(9) =15211a(10) =68980a(11) =231773a(12) =1063877a(13) =3723774a(14) =17259336a(15) =62309667a(16) =290989867a(17) =1076811320a(18) =5058555808a(19) =19101348364a(20) =90168012117a(21) =346225925596
External references
- oeis: A149096