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A119058 Numbers n such that the n-th triangular number contains only digits {0,2,9}. 2
44, 64656155, 429439844, 632914215, 21072266180 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Next term must be greater than 1.4*10^20. - Max Alekseyev, Aug 14 2013

LINKS

Table of n, a(n) for n=1..5.

G. Resta, Tridigital Triangular Numbers

CROSSREFS

Cf. A000217, A119057. See A119034 for a table of cross-references.

Sequence in context: A172878 A001782 A172910 * A218402 A131994 A037940

Adjacent sequences:  A119055 A119056 A119057 * A119059 A119060 A119061

KEYWORD

nonn,base,more

AUTHOR

Giovanni Resta, May 10 2006

STATUS

approved

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Last modified June 13 11:39 EDT 2021. Contains 344992 sequences. (Running on oeis4.)