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, 1, 0), (1, 1, 1)}.
A151014
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, 1, 0), (1, 1, 1)}.
Terms
- a(0) =1a(1) =2a(2) =9a(3) =39a(4) =182a(5) =862a(6) =4162a(7) =20259a(8) =99337a(9) =489304a(10) =2418609a(11) =11984697a(12) =59500280a(13) =295825856a(14) =1472439767a(15) =7335264669a(16) =36567210877a(17) =182391230093a(18) =910133114645
External references
- oeis: A151014