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), (0, 1, 0), (1, 0, 1), (1, 1, -1), (1, 1, 0)}.
A151135
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), (0, 1, 0), (1, 0, 1), (1, 1, -1), (1, 1, 0)}.
Terms
- a(0) =1a(1) =3a(2) =11a(3) =46a(4) =199a(5) =892a(6) =4076a(7) =18863a(8) =88311a(9) =416493a(10) =1977383a(11) =9436019a(12) =45216124a(13) =217454726a(14) =1048858778a(15) =5072181339a(16) =24582872384a(17) =119374899206a(18) =580683017523
External references
- oeis: A151135