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.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A119141 Numbers k such that the k-th triangular number contains only digits {1,6,7}. 2
1, 3, 11, 18, 36, 48, 58, 188, 351, 366, 576, 1111, 3941, 11106, 12423, 17981, 18263, 34976, 365423, 392711, 585963, 1111411, 1494106, 568817576, 1494099506, 3651623506, 12382820048, 351330663666, 586117934576, 37888432565023 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
CROSSREFS
Cf. A000217, A119140. See A119034 for a table of cross-references.
Sequence in context: A127995 A316839 A308047 * A303520 A225144 A335135
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 May 27 02:08 EDT 2024. Contains 372847 sequences. (Running on oeis4.)