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A067610 Number of stereo alkanes not containing a certain forbidden substructure) with combinatorial diameter n. 4
1, 1, 3, 6, 57, 838, 319924, 35630889 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

REFERENCES

R. Davies and P. J. Freyd, C_{167}H_{336} is The Smallest Alkane with More Realizable Isomers than the Observable Universe has Particles, Journal of Chemical Education, Vol. 66, April 1989, pp. 278-281.

LINKS

Table of n, a(n) for n=1..8.

CROSSREFS

Cf. A000602, A000628, A067609, A067608.

Sequence in context: A003098 A045914 A303351 * A067609 A012473 A058161

Adjacent sequences:  A067607 A067608 A067609 * A067611 A067612 A067613

KEYWORD

nonn

AUTHOR

Peter Freyd (pjf(AT)saul.cis.upenn.edu), Feb 02 2002

EXTENSIONS

Edited by Dean Hickerson, Feb 11 2002

STATUS

approved

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Last modified November 18 19:59 EST 2019. Contains 329288 sequences. (Running on oeis4.)