The OEIS mourns the passing of
Jim Simons
and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A116278
n times n+9 gives the concatenation of two numbers m and m-2.
4
7040, 487249777145, 512750222847, 684330069116
(
list
;
graph
;
refs
;
listen
;
history
;
text
;
internal format
)
OFFSET
1,1
LINKS
Table of n, a(n) for n=1..4.
EXAMPLE
7040 * 7049 = 4962//4960, where // denotes concatenation.
CROSSREFS
Cf.
A116147
,
A116271
,
A116277
,
A116284
.
Sequence in context:
A206757
A236061
A317399
*
A206050
A116332
A234545
Adjacent sequences:
A116275
A116276
A116277
*
A116279
A116280
A116281
KEYWORD
nonn
,
base
AUTHOR
Giovanni Resta
, Feb 06 2006
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 3 03:48 EDT 2024. Contains 373054 sequences. (Running on oeis4.)
