%I M0435 #25 Jul 01 2017 02:18:14
%S 1,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,9,10
%N a(n) = largest integer m such that every n-point interval order contains an m-point semiorder.
%C Equivalently, a(n) is the largest integer m such that every n-point interval graph contains an m-point unit interval graph.
%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%H P. C. Fishburn, <a href="/A005410/a005410.pdf">Letter to N. J. A. Sloane, Jul 1980</a>
%H Peter C. Fishburn, <a href="https://doi.org/10.1137/0602016">Maximum semiorders in interval orders</a>, SIAM J. Algebraic Discrete Methods 2 (1981), no. 2, 127-135.
%K nonn,more
%O 1,2
%A _N. J. A. Sloane_.
%E Better definition from _N. J. A. Sloane_, Mar 25 2014