A129019 A129017(3n+1).

1, 4, 19, 70, 239, 726, 2062

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..6.

Crossrefs

Cf. A129012-A129021.

Sequence in context: A357251 A291888 A217324 * A167247 A267192 A219972

Adjacent sequences: A129016 A129017 A129018 * A129020 A129021 A129022

Keyword

nonn

Author

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

Status

approved