login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A228726
Number a(n) of columns in each row of the irregular triangles in
A187800
and
A228594
.
2
1, 1, 1, 2, 1, 1, 2, 1, 2, 9, 1, 1, 3, 1, 3, 9, 1, 5, 9, 28, 1, 1, 3, 1, 3, 10, 1, 5, 11, 28, 1, 5, 12, 28
(
list
;
graph
;
refs
;
listen
;
history
;
text
;
internal format
)
OFFSET
1,4
LINKS
Table of n, a(n) for n=1..34.
EXAMPLE
a(9) = 9 because there are 9 elements in the 9th rows of
A187800
and
A228594
.
CROSSREFS
Sequence in context:
A153905
A327812
A319093
*
A346175
A165357
A346741
Adjacent sequences:
A228723
A228724
A228725
*
A228727
A228728
A228729
KEYWORD
nonn
AUTHOR
Christopher Hunt Gribble
, Aug 31 2013
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 March 29 00:26 EDT 2024. Contains 371264 sequences. (Running on oeis4.)