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, 1), (0, 0, 1), (1, 0, -1)}.
A148182
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, 1), (0, 0, 1), (1, 0, -1)}.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =4a(4) =12a(5) =29a(6) =93a(7) =266a(8) =889a(9) =2819a(10) =9704a(11) =32547a(12) =114559a(13) =402548a(14) =1447243a(15) =5232685a(16) =19135813a(17) =70627631a(18) =263062730a(19) =986459954a(20) =3723667384a(21) =14131582708a(22) =54009336165a(23) =207318335930a(24) =800149593714
External references
- oeis: A148182