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A119213 Numbers k such that the k-th triangular number contains only digits {4,6,8}. 2
3, 11, 36, 131, 411, 1331, 13331, 35963, 113916, 133331, 1333331, 13333331, 133333331, 1333333331, 13333333331, 31141241043, 133333333331, 1333333333331, 4110641475211, 13333333333331, 133333333333331 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
CROSSREFS
Cf. A000217, A119212. See A119034 for a table of cross-references.
Sequence in context: A333760 A100068 A260745 * A068644 A286318 A119054
KEYWORD
nonn,base
AUTHOR
Giovanni Resta, May 10 2006
STATUS
approved

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Last modified April 19 16:08 EDT 2024. Contains 371794 sequences. (Running on oeis4.)