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A129014 A129012(3n+1). 1
1, 3, 12, 38, 128, 373, 1055, 2765 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

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..7.

CROSSREFS

Cf. A129012-A129021.

Sequence in context: A217093 A278639 A222643 * A261384 A055294 A029858

Adjacent sequences:  A129011 A129012 A129013 * A129015 A129016 A129017

KEYWORD

nonn

AUTHOR

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

STATUS

approved

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Last modified December 7 23:55 EST 2016. Contains 278902 sequences.