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A038145 Number of n-celled helicenes without holes. 0
0, 0, 0, 0, 0, 1, 8, 71, 542, 3857 (list; graph; refs; listen; history; text; internal format)
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.

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

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Last modified July 17 14:39 EDT 2019. Contains 325106 sequences. (Running on oeis4.)