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), (0, 0, 1), (1, 0, -1), (1, 0, 0)}.
A150094
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), (0, 0, 1), (1, 0, -1), (1, 0, 0)}.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =19a(4) =66a(5) =247a(6) =966a(7) =3907a(8) =16161a(9) =68187a(10) =292988a(11) =1277679a(12) =5638228a(13) =25121213a(14) =112897471a(15) =511377308a(16) =2332359467a(17) =10700837502a(18) =49349356380a(19) =228656721764
External references
- oeis: A150094