Annual Appeal: Please make a donation (tax deductible in USA) to keep the OEIS running. Over 5000 articles have referenced us, often saying "we discovered this result with the help of the OEIS".
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=0..31.
Sequence in context: A181107 A234974 A248593 * A185221 A248153 A079166
Adjacent sequences: A038305 A038306 A038307 * A038309 A038310 A038311
N. J. A. Sloane.