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Number of split interval orders on n points.
2

%I #14 Jan 04 2024 06:35:18

%S 1,2,5,16,63,315,1979,15576,151606

%N Number of split interval orders on n points.

%H Kathrin Bringmann, Yingkun Li, and Robert C. Rhoades, <a href="http://dx.doi.org/10.1016/j.ejc.2014.04.003">Asymptotics for the number of row-Fishburn matrices</a>, European Journal of Combinatorics, vol.41, pp.183-196, (October-2014); <a href="http://www.mi.uni-koeln.de/Bringmann/selfdual_rev7.pdf">preprint</a>.

%H J. A. Reeds and P. C. Fishburn, <a href="http://dx.doi.org/10.1023/A:1011914411416">Counting split interval orders</a>, Order, Vol. 18, No. 2, 2001, pp. 129-135.

%Y Cf. A059685, A058259.

%K nonn,more

%O 1,2

%A _N. J. A. Sloane_, Feb 05 2001