|
%I
%S 0,24,240,2544,31800,435864,6323352,95647104,1493934516,23934001600,
%T 391427518152,6511949001648
%N Number of two-dimensional three-sided prudent 2n-step returns.
%H Timothy M. Garoni, Anthony J. Guttmann, Iwan Jensen, John C. Dethridge, <a href="http://dx.doi.org/10.1088/1751-8113/42/9/095205">Prudent walks and polygons</a>, J. Phys. A: Math. Theor. 42 (2009) 095205, Table 1.
%Y Cf. A157519, A151719.
%K nonn
%O 1,2
%A _N. J. A. Sloane_, Jun 11 2009
|
