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A119215
Numbers k such that the k-th triangular number contains only digits {4,6,9}.
2
3, 11, 31, 36, 43, 96953253343
OFFSET
1,1
COMMENTS
Next term exceeds 1.4*10^16.
CROSSREFS
Cf. A000217, A119214. See A119034 for a table of cross-references.
Sequence in context: A003554 A003523 A018781 * A266970 A057172 A277167
KEYWORD
nonn,base,more
AUTHOR
Giovanni Resta, May 10 2006
STATUS
approved