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, 0, 0), (0, -1, 0), (0, 0, -1), (0, 0, 1), (1, 1, 1)}.
A150832
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, 0, 0), (0, -1, 0), (0, 0, -1), (0, 0, 1), (1, 1, 1)}.
Terms
- a(0) =1a(1) =2a(2) =8a(3) =32a(4) =136a(5) =592a(6) =2648a(7) =11990a(8) =55074a(9) =254872a(10) =1189782a(11) =5583716a(12) =26357530a(13) =124899804a(14) =594321530a(15) =2836365206a(16) =13578542630a(17) =65155629342a(18) =313399306562
External references
- oeis: A150832