A067610 Number of stereo alkanes not containing a certain forbidden substructure with combinatorial diameter n.

1, 1, 3, 6, 57, 838, 319924, 35630889

Offset

1,3

Links

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

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.

Crossrefs

Cf. A000602, A000628, A067609, A067608.

Sequence in context: A045914 A370520 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