A076853 Number of geometries for group A_n under axioms A, CD.

1, 11, 19, 39, 86

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.

Links

Table of n, a(n) for n=4..8.

Crossrefs

Cf. A076851-A076862.

Sequence in context: A321568 A271779 A271840 * A167475 A136026 A033201

Adjacent sequences: A076850 A076851 A076852 * A076854 A076855 A076856

Keyword

nonn,more

Author

N. J. A. Sloane, Nov 23 2002

Extensions

I'm not certain about the first two entries.

Status

approved