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, 0, -1), (0, 0, 1), (0, 1, 0), (1, 0, 0)}.
A151053
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, 0, -1), (0, 0, 1), (0, 1, 0), (1, 0, 0)}.
Terms
- a(0) =1a(1) =3a(2) =10a(3) =37a(4) =144a(5) =586a(6) =2454a(7) =10491a(8) =45670a(9) =201428a(10) =898710a(11) =4047732a(12) =18373856a(13) =83991102a(14) =386189282a(15) =1785033011a(16) =8288830692a(17) =38645792022a(18) =180849601258a(19) =849093024414
External references
- oeis: A151053