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, 1, 0), (1, 0, 0), (1, 1, -1)}.
A151063
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, 1, 0), (1, 0, 0), (1, 1, -1)}.
Terms
- a(0) =1a(1) =3a(2) =10a(3) =38a(4) =158a(5) =685a(6) =3059a(7) =13975a(8) =64874a(9) =304870a(10) =1446786a(11) =6918827a(12) =33293647a(13) =161031214a(14) =782158641a(15) =3812561357a(16) =18639652369a(17) =91361676115a(18) =448784432997
External references
- oeis: A151063