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, 0, 0), (1, 0, 0), (1, 0, 1), (1, 1, 0)}.
A151163
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, 0, 0), (1, 0, 0), (1, 0, 1), (1, 1, 0)}.
Terms
- a(0) =1a(1) =3a(2) =12a(3) =47a(4) =204a(5) =878a(6) =3968a(7) =17803a(8) =82220a(9) =377922a(10) =1770124a(11) =8263106a(12) =39081068a(13) =184404572a(14) =878441218a(15) =4177688311a(16) =20011075710a(17) =95741595824a(18) =460610249666
External references
- oeis: A151163