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, 1), (0, 1, 1), (1, -1, 1), (1, 0, -1), (1, 1, 1)}.
A151013
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, 1), (0, 1, 1), (1, -1, 1), (1, 0, -1), (1, 1, 1)}.
Terms
- a(0) =1a(1) =2a(2) =9a(3) =39a(4) =182a(5) =852a(6) =4108a(7) =19823a(8) =96863a(9) =473880a(10) =2332888a(11) =11496804a(12) =56851680a(13) =281377414a(14) =1395432127a(15) =6925190403a(16) =34411294573a(17) =171084261164a(18) =851292169963
External references
- oeis: A151013