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, 1), (-1, 0, 0), (1, 0, 0), (1, 0, 1), (1, 1, -1)}.
A150414
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, 1), (-1, 0, 0), (1, 0, 0), (1, 0, 1), (1, 1, -1)}.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =24a(4) =95a(5) =376a(6) =1598a(7) =6781a(8) =29988a(9) =132405a(10) =600550a(11) =2720522a(12) =12557814a(13) =57911764a(14) =270755967a(15) =1264974752a(16) =5971517662a(17) =28174716558a(18) =134005051959a(19) =637114121726
External references
- oeis: A150414