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), (1, -1, -1), (1, 0, 0), (1, 1, 0)}.
A150326
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), (1, -1, -1), (1, 0, 0), (1, 1, 0)}.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =22a(4) =87a(5) =320a(6) =1336a(7) =5315a(8) =22893a(9) =95282a(10) =418633a(11) =1793723a(12) =7989642a(13) =34925906a(14) =157138088a(15) =696964277a(16) =3159969123a(17) =14169903709a(18) =64636890808a(19) =292319981145
External references
- oeis: A150326