A121077 Nonisomorphic catacondensed monoheptahelicenes (see reference for precise definition).

3, 34, 293, 2090

Offset

5,1

References

B. N. Cyvin et al., A class of polygonal systems representing polycyclic conjugated hydrocarbons ..., Monat. f. Chemie, 125 (1994), 1327-1337.

Links

Table of n, a(n) for n=5..8.

Crossrefs

Sequence in context: A279130 A266696 A141789 * A024396 A246384 A066265

Adjacent sequences: A121074 A121075 A121076 * A121078 A121079 A121080

Keyword

nonn

Author

N. J. A. Sloane, Aug 11 2006

Status

approved