%I #10 Aug 17 2018 10:58:19
%S 1,4203045807626,84060916163336,798578704207074,4791472253296106,
%T 20363758019368323,65164051780016980,162910744316489788,
%U 325834059588060117,529707205213463823,709935971390166248,805494832051588614,821976324224631043,821976324224611712,822000129478641948,747383755288236256,546761228419958342,293715859557026466,106920718330384544,23458617733909980,2345861773390998
%N f-vector for 20-dimensional simplicial polytope providing counterexample to unimodality conjecture.
%C Fails unimodality conjecture because a(11) > a(12) < a(13). - _Sean A. Irvine_, Aug 17 2018
%D G. M. Ziegler, Lect. on Polytopes, Springer 1995, p. 272.
%K nonn,fini,full
%O -1,2
%A _N. J. A. Sloane_.
%E More terms from Ziegler reference added by _Sean A. Irvine_, Aug 17 2018