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), (1, 0, 1), (1, 1, -1), (1, 1, 0)}.
A150788
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), (1, 0, 1), (1, 1, -1), (1, 1, 0)}.
Terms
- a(0) =1a(1) =2a(2) =8a(3) =30a(4) =136a(5) =580a(6) =2753a(7) =12444a(8) =60241a(9) =280841a(10) =1374083a(11) =6526155a(12) =32135134a(13) =154489239a(14) =763821842a(15) =3703025640a(16) =18358658426a(17) =89543838530a(18) =444787699907
External references
- oeis: A150788