A038177 Number of unbranched mono-5-catapolyheptagons.

1, 3, 12, 58, 256, 1160, 5120, 22560, 98304

Offset

2,2

References

B. N. Cyvin et al., Isomer enumeration of unbranched catacondensed polygonal systems with pentagons and heptagons, Match, No. 34 (Oct 1996), pp. 109-121. See Tables 4 and 5.

Links

Table of n, a(n) for n=2..10.

B. N. Cyvin et al., Isomer enumeration of unbranched catacondensed polygonal systems with pentagons and heptagons, 1996 [Annotated scanned copy of pages 118, 119 only].

Crossrefs

Cf. A038175.

Sequence in context: A032268 A079245 A122677 * A163047 A369616 A372378

Adjacent sequences: A038174 A038175 A038176 * A038178 A038179 A038180

Keyword

nonn,more

Author

N. J. A. Sloane.

Status

approved