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%I #10 Apr 24 2023 17:01:56
%S 1,11,20,40,88
%N Number of geometries for group A_n under axioms A.
%D F. Buekenhout, P. Cara, M. Dehon and D. Leemans, Residually weakly primitive geometries of small sporadic and almost simple groups: a synthesis. Topics in diagram geometry, 1-27, Quad. Mat., 12, Dept. Math., Seconda Univ. Napoli, Caserta, 2003.
%H <a href="/index/Gre#groups">Index entries for sequences related to groups</a>
%Y Cf. A076852-A076862.
%K nonn,more
%O 4,2
%A _N. J. A. Sloane_, Nov 23 2002