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A119207 Numbers n such that the n-th triangular number contains only digits {4,5,8}. 2
9, 10, 9854, 411933209, 9443035090314, 29851116744790, 30195643554810, 3423114221246070 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Next entry must be greater than 1.4*10^16.

LINKS

Table of n, a(n) for n=1..8.

G. Resta, Tridigital Triangular Numbers

CROSSREFS

Cf. A000217, A119206. See A119034 for a table of cross-references.

Sequence in context: A042729 A156292 A119205 * A165254 A058069 A266703

Adjacent sequences:  A119204 A119205 A119206 * A119208 A119209 A119210

KEYWORD

nonn,base,more

AUTHOR

Giovanni Resta, May 10 2006

STATUS

approved

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Last modified April 1 05:04 EDT 2020. Contains 333155 sequences. (Running on oeis4.)