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A119159
Numbers k such that the k-th triangular number contains only digits {2,4,5}.
2
9, 10, 225, 714, 6714, 22114, 2119209, 2211449, 102523609, 942573334, 95336514049, 3333030289167658390
OFFSET
1,1
COMMENTS
Next term exceeds 1.4*10^20.
CROSSREFS
Cf. A000217, A119158. See A119034 for a table of cross-references.
Sequence in context: A041177 A041178 A221201 * A041415 A103869 A041753
KEYWORD
nonn,base,more
AUTHOR
Giovanni Resta, May 10 2006
EXTENSIONS
a(12) from Max Alekseyev, Aug 19 2013
STATUS
approved