%I #9 Feb 18 2024 14:49:50

%S 0,1,0,3,1,9,6,28,27,90,110

%N Arises from enumeration of a certain class of partial zig-zag knight's paths on the square grid.

%C It would be nice to have a more precise definition.

%H Jean-Luc Baril and José L. Ramírez, <a href="http://jl.baril.u-bourgogne.fr/knight.pdf">Knight's paths towards Catalan numbers</a>, Univ. Bourgogne Franche-Comté (2022). Also arXiv:2206.12087 [math.CO], Jan 2023. See Section 3.2.

%Y Cf. A368378, A368380.

%K nonn,more

%O 0,4

%A _N. J. A. Sloane_, Feb 18 2024