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, 0), (-1, 1, 1), (0, 0, -1), (1, 0, 0), (1, 0, 1)}.
A150424
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, 0), (-1, 1, 1), (0, 0, -1), (1, 0, 0), (1, 0, 1)}.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =24a(4) =96a(5) =395a(6) =1687a(7) =7267a(8) =32002a(9) =142957a(10) =647052a(11) =2951242a(12) =13554616a(13) =62649395a(14) =291367747a(15) =1361774570a(16) =6390662709a(17) =30098529924a(18) =142234054250a(19) =674197080774
External references
- oeis: A150424