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A129016

A129012 with the third term from each triple omitted.

1, 1, 2, 3, 7, 12, 27, 38, 86, 128, 264, 373, 749, 1055, 2022, 2765

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OFFSET

0,3

REFERENCES

J. R. Dias, The Periodic Table Set as a Unifying Concept in Going from Benzenoid Hydrocarbons to Fullerene Carbons, in "The Periodic Table: Into the 21st Century", Edited by D. H. Rouvray and R. B. King, Research Studies Press Ltd, Baldock, Hertfordshire, England, 2004, 371-396.

LINKS

Table of n, a(n) for n=0..15.

CROSSREFS

Cf. A129012-A129021.

Sequence in context: A298897 A054272 A259593 * A099163 A000676 A283823

Adjacent sequences: A129013 A129014 A129015 * A129017 A129018 A129019

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, based on email from Jerry R. Dias (DiasJ(AT)umkc.edu), May 08 2007

STATUS

approved