4,3

Bokowski, J.; Schuchert, P.; Equifacetted 3-spheres as topes of nonpolytopal matroid polytopes. Discrete Comput. Geom. 13 (1995), no. 3-4, 347-361.

Sequence in context: A083849 A063501 A103892 this_sequence A068763 A112573 A120406

Adjacent sequences: A000400 A000401 A000402 this_sequence A000404 A000405 A000406

nonn,hard

N. J. A. Sloane (njas(AT)research.att.com).