A038175 Unbranched mono-5-catapolyheptagons.

0, 2, 12, 54, 256, 1144, 5120, 22496, 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 Table 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. A038177.

Sequence in context: A181765 A198150 A122676 * A181541 A197230 A025171

Adjacent sequences: A038172 A038173 A038174 * A038176 A038177 A038178

Keyword

nonn,more

Author

N. J. A. Sloane.

Status

approved