Number of walks within N^2 (the first quadrant of Z^2) starting at (0,0) and consisting of n steps taken from {(-1, -1), (-1, 1), (0, 1), (1, -1), (1, 0), (1, 1)}.
A151325
Number of walks within N^2 (the first quadrant of Z^2) starting at (0,0) and consisting of n steps taken from {(-1, -1), (-1, 1), (0, 1), (1, -1), (1, 0), (1, 1)}.
Terms
- a(0) =1a(1) =3a(2) =14a(3) =69a(4) =364a(5) =1964a(6) =10862a(7) =60849a(8) =344914a(9) =1970654a(10) =11336210a(11) =65550856a(12) =380715692a(13) =2219101122a(14) =12974182136a(15) =76050379457a(16) =446774956662
External references
- oeis: A151325