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), (0, 0, -1), (0, 0, 1), (0, 1, 0), (1, 0, 0)}.
A151056
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), (0, 0, -1), (0, 0, 1), (0, 1, 0), (1, 0, 0)}.
Terms
- a(0) =1a(1) =3a(2) =10a(3) =37a(4) =146a(5) =602a(6) =2558a(7) =11117a(8) =49164a(9) =220488a(10) =1000026a(11) =4578134a(12) =21122894a(13) =98108364a(14) =458281644a(15) =2151336893a(16) =10142872712a(17) =48003142708a(18) =227953126694
External references
- oeis: A151056