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), (0, 1, 1), (1, -1, 0), (1, 1, 1)}.
A151000
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), (0, 1, 1), (1, -1, 0), (1, 1, 1)}.
Terms
- a(0) =1a(1) =2a(2) =9a(3) =38a(4) =174a(5) =809a(6) =3844a(7) =18453a(8) =89381a(9) =435538a(10) =2132335a(11) =10476821a(12) =51621051a(13) =254914718a(14) =1261096981a(15) =6248016875a(16) =30993074650a(17) =153896056649a(18) =764821193488
External references
- oeis: A151000