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, 0), (-1, 0, 0), (1, 0, 0), (1, 1, 0), (1, 1, 1)}.
A151235
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, 0), (-1, 0, 0), (1, 0, 0), (1, 1, 0), (1, 1, 1)}.
Terms
- a(0) =1a(1) =3a(2) =14a(3) =59a(4) =286a(5) =1302a(6) =6396a(7) =30093a(8) =148762a(9) =712466a(10) =3534356a(11) =17112094a(12) =85071796a(13) =414867684a(14) =2065425648a(15) =10123488801a(16) =50449616658a(17) =248190199130
External references
- oeis: A151235