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!)
A119137 Numbers k such that the k-th triangular number contains only digits {1,5,8}. 2
1, 5, 10, 101, 130, 1078, 1330, 1541, 4730, 10114, 12773, 13330, 41269, 133330, 1333330, 13333330, 133333330, 1333333330, 3430798394, 5506103010, 13333333330, 108245601470, 133333333330, 1305029950270, 1333333333330 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..25.

G. Resta, Tridigital Triangular Numbers

CROSSREFS

Cf. A000217, A119136. See A119034 for a table of cross-references.

Sequence in context: A200983 A344140 A267042 * A048360 A251702 A067958

Adjacent sequences:  A119134 A119135 A119136 * A119138 A119139 A119140

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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified January 24 09:43 EST 2022. Contains 350534 sequences. (Running on oeis4.)