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, -1), (1, 0, 1), (1, 1, 1)}.
A150941
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, -1), (1, 0, 1), (1, 1, 1)}.
Terms
- a(0) =1a(1) =2a(2) =9a(3) =34a(4) =159a(5) =675a(6) =3266a(7) =14752a(8) =71900a(9) =334494a(10) =1644710a(11) =7801018a(12) =38489940a(13) =184758909a(14) =914823470a(15) =4430102086a(16) =21974797572a(17) =107063486966a(18) =532012176938
External references
- oeis: A150941