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A119188 Triangular numbers composed of digits {3,5,7}. 2
3, 55, 5735537337753, 53737577757753, 335355753333373553355 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Next entry must be greater than 10^32.

LINKS

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

G. Resta, Tridigital Triangular Numbers

CROSSREFS

Cf. A000217, A119189. See A119033 for a table of cross-references.

Sequence in context: A110058 A083869 A290773 * A111451 A285450 A280805

Adjacent sequences: A119185 A119186 A119187 * A119189 A119190 A119191

KEYWORD

nonn,base,more

AUTHOR

Giovanni Resta, May 10 2006

STATUS

approved

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Last modified January 29 00:02 EST 2023. Contains 359905 sequences. (Running on oeis4.)