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A119189
Numbers k such that the k-th triangular number contains only digits {3,5,7}.
2
2, 10, 3386897, 10367022, 25898098514, 33868444120607410, 3835970218282143377
OFFSET
1,1
CROSSREFS
Cf. A000217, A119188. See A119034 for a table of cross-references.
Sequence in context: A027735 A085698 A057095 * A309862 A260756 A252707
KEYWORD
nonn,base,more
AUTHOR
Giovanni Resta, May 10 2006
EXTENSIONS
a(6)-a(7) from Tyler Busby, Mar 31 2023
STATUS
approved