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A122671
Number of catacondensed coronoid systems with n hexagons with a single hole.
0
1, 3, 15, 62, 312, 1435, 6785
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OFFSET
8,2
LINKS
Table of n, a(n) for n=8..14.
S. J. Cyvin et al.,
The simplest coronoids: hollow hexagons
, Struct. Chem., 2 (1991), 555-566.
CROSSREFS
Cf.
A038140
.
Sequence in context:
A218227
A072336
A356421
*
A317181
A067562
A062211
Adjacent sequences:
A122668
A122669
A122670
*
A122672
A122673
A122674
KEYWORD
nonn
,
more
AUTHOR
N. J. A. Sloane
, Sep 23 2006
EXTENSIONS
Name clarified by
Andrey Zabolotskiy
, Feb 16 2023
STATUS
approved
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Last modified July 13 04:46 EDT 2024. Contains 374267 sequences. (Running on oeis4.)