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), (0, 1, -1), (0, 1, 0), (1, 0, 1)}.
A150284
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), (0, 1, -1), (0, 1, 0), (1, 0, 1)}.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =23a(4) =91a(5) =365a(6) =1529a(7) =6552a(8) =28329a(9) =123993a(10) =548439a(11) =2441621a(12) =10936491a(13) =49261695a(14) =222834197a(15) =1011830689a(16) =4610728789a(17) =21071941581a(18) =96554920713a(19) =443512797674
External references
- oeis: A150284