login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A116335 Numbers k such that k*(k+2) gives the concatenation of two numbers m and m+7. 4
7746, 8020, 33294317, 66705682, 98000200, 340465755424, 476452552744, 523547447255, 659534244575, 866013200680, 998000002000, 3695104677080133, 3755782995538767, 4198081170077530, 4803478892324965, 5196521107675034 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
EXAMPLE
98000200 * 98000202 = 96040393//96040400, where // denotes concatenation.
CROSSREFS
Sequence in context: A079035 A116317 A031586 * A115440 A321037 A031646
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 March 28 16:34 EDT 2024. Contains 371254 sequences. (Running on oeis4.)