8,2

S. J. Cyvin et al., The simplest coronoids: hollow hexagons, Struct. Chem., 2 (1991), 555-566.

Sequence in context: A128237 A058749 A072336 this_sequence A067562 A062211 A024036

Adjacent sequences: A122668 A122669 A122670 this_sequence A122672 A122673 A122674

nonn

N. J. A. Sloane (njas(AT)research.att.com), Sep 23 2006