2,2
B. N. Cyvin et al., Isomer enumeration of unbranched catacondensed polygonal systems with pentagons and heptagons, Match, No. 34 (Oct 1996), pp. 109-121.
Table of n, a(n) for n=2..10.
Cf. A038175.
Sequence in context: A032268 A079245 A122677 * A163047 A090363 A115086
Adjacent sequences: A038174 A038175 A038176 * A038178 A038179 A038180
nonn
N. J. A. Sloane.
approved
