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, -1), (0, 0, 1), (0, 1, 0), (1, 0, 0)}.
A151035
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, -1), (0, 0, 1), (0, 1, 0), (1, 0, 0)}.
Terms
- a(0) =1a(1) =3a(2) =9a(3) =31a(4) =117a(5) =451a(6) =1795a(7) =7371a(8) =30641a(9) =129237a(10) =553453a(11) =2388067a(12) =10391067a(13) =45620153a(14) =201301879a(15) =893149801a(16) =3986101427a(17) =17854332707a(18) =80282749777a(19) =362491091255
External references
- oeis: A151035