close
login
The OEIS is supported by the many generous donors to the OEIS Foundation.
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A119184
Triangular numbers composed of digits {3,4,6}.
2
3, 6, 36, 66, 666, 333336, 3664664466, 66336663646, 3343646334464646, 334446636363634446, 346644344666643436, 3644434346644436366346, 4446663663333436343436, 664333446446364463633446, 436633343363366333434433646, 6336363664446634343634443466
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
Table of n, a(n) for n=1..16.
Giovanni Resta, Tridigital Triangular Numbers
FORMULA
a(n) = A000217(A119185(n)). - Michel Marcus, Mar 15 2023
CROSSREFS
Cf. A000217, A053939, A119185. See A119033 for a table of cross-references.
Sequence in context: A119194 A119198 A119196 * A350991 A084260 A076983
Adjacent sequences: A119181 A119182 A119183 * A119185 A119186 A119187
KEYWORD
nonn,base
AUTHOR
Giovanni Resta, May 10 2006
EXTENSIONS
a(15)-a(16) from Tyler Busby, Mar 15 2023
STATUS
approved

Lookup Welcome Wiki Register Music Plot 2 Demos Index WebCam Contribute Format Style Sheet Transforms Superseeker Recents
The OEIS Community
Maintained by The OEIS Foundation Inc.
Last modified May 21 13:41 EDT 2026. Contains 395794 sequences.
License Agreements, Terms of Use, Privacy Policy