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!)
A119237 Numbers k such that the k-th triangular number contains only digits {7,8,9}. 2
12, 132, 1332, 13332, 133332, 1247307, 1333332, 3949427, 13333332, 133333332, 1333333332, 13333333332, 133333333332, 397189873707, 1333333333332, 13333333333332, 133333333333332, 1333333333333332, 13333333333333332 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
CROSSREFS
Cf. A000217, A119236. See A119034 for a table of cross-references.
Sequence in context: A119217 A358113 A334334 * A038729 A125447 A162767
KEYWORD
nonn,base
AUTHOR
Giovanni Resta, May 10 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 April 16 14:51 EDT 2024. Contains 371749 sequences. (Running on oeis4.)