A038145 Number of n-celled helicenes without holes.

0, 0, 0, 0, 0, 1, 8, 71, 542, 3857

Offset

1,7

References

J. V. Knop et al., On the total number of polyhexes, Match, No. 16 (1984), 119-134.

Links

Table of n, a(n) for n=1..10.

J. V. Knop, K. Szymanski, Ž. Jeričević, and N. Trinajstić, On the total number of polyhexes, Match, No. 16 (1984), 119-134.

Crossrefs

Cf. A018190, A038143-A038147.

Sequence in context: A291892 A217328 A193102 * A198856 A320092 A015576

Adjacent sequences: A038142 A038143 A038144 * A038146 A038147 A038148

Keyword

nonn

Author

N. J. A. Sloane.

Status

approved