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, 1, 0), (1, -1, 1), (1, 0, -1), (1, 1, 1)}.
A149734
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, 1, 0), (1, -1, 1), (1, 0, -1), (1, 1, 1)}.
Terms
- a(0) =1a(1) =1a(2) =5a(3) =17a(4) =75a(5) =303a(6) =1389a(7) =6045a(8) =28317a(9) =127803a(10) =606887a(11) =2801619a(12) =13424071a(13) =62911801a(14) =303379905a(15) =1437067481a(16) =6962892139a(17) =33245183393a(18) =161666164103a(19) =776608858891
External references
- oeis: A149734