login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A058488
Total number of interior nodes in all essentially parallel series-parallel networks with n unlabeled edges, multiple edges not allowed.
2
0, 0, 1, 4, 10, 30, 78, 217
(
list
;
graph
;
refs
;
listen
;
history
;
text
;
internal format
)
OFFSET
0,4
LINKS
Table of n, a(n) for n=0..7.
J. W. Moon,
Some enumerative results on series-parallel networks
, Annals Discrete Math., 33 (1987), 199-226 (the sequence I_q(n)*q_pi Table 2).
Index entries for sequences mentioned in Moon (1987)
FORMULA
Reference gives g.f.
CROSSREFS
Cf.
A058494
,
A058495
.
Sequence in context:
A222807
A090578
A007713
*
A036674
A006357
A114946
Adjacent sequences:
A058485
A058486
A058487
*
A058489
A058490
A058491
KEYWORD
nonn
,
nice
,
more
AUTHOR
N. J. A. Sloane
, Dec 20 2000
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 April 25 03:15 EDT 2024. Contains 371964 sequences. (Running on oeis4.)