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A076851
Number of geometries for group A_n under axioms A.
11
1, 11, 20, 40, 88
OFFSET
4,2
REFERENCES
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.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Nov 23 2002
STATUS
approved