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, 0, 1), (1, 1, -1), (1, 1, 0)}.
A150413
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, 0, 1), (1, 1, -1), (1, 1, 0)}.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =24a(4) =95a(5) =373a(6) =1562a(7) =6506a(8) =28092a(9) =120849a(10) =532128a(11) =2336524a(12) =10428546a(13) =46445770a(14) =209353071a(15) =942147201a(16) =4278683401a(17) =19408551877a(18) =88665523182a(19) =404715008428
External references
- oeis: A150413