login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A038147
Number of polyhexes with n cells.
8
1, 1, 3, 7, 22, 83, 341, 1519, 7114, 34350
(
list
;
graph
;
refs
;
listen
;
history
;
text
;
internal format
)
OFFSET
1,3
LINKS
Table of n, a(n) for n=1..10.
J. V. Knop, K. Szymanski, Ž. Jeričević, and N. Trinajstić,
On the total number of polyhexes
, Match, No. 16 (1984), 119-134.
CROSSREFS
See
A000228
for another version of this sequence.
Cf.
A018190
,
A038143
-
A038146
.
Sequence in context:
A187982
A000228
A108070
*
A252784
A364627
A082271
Adjacent sequences:
A038144
A038145
A038146
*
A038148
A038149
A038150
KEYWORD
nonn
,
hard
,
more
AUTHOR
N. J. A. Sloane
.
STATUS
approved
Lookup
|
Welcome
|
Wiki
|
Register
|
Music
|
Plot 2
|
Demos
|
Index
|
Browse
|
More
|
WebCam
Contribute new seq. or comment
|
Format
|
Style Sheet
|
Transforms
|
Superseeker
|
Recents
The OEIS Community
| Maintained by
The OEIS Foundation Inc.
License Agreements, Terms of Use, Privacy Policy.
.
Last modified June 26 01:27 EDT 2024. Contains 373715 sequences. (Running on oeis4.)