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A119181
Numbers k such that the k-th triangular number contains only digits {2,8,9}.
2
7, 1287, 4312, 14087, 75934087, 421883687, 773669476312
OFFSET
1,1
COMMENTS
Next term exceeds 1.4*10^16.
CROSSREFS
Cf. A000217, A119180. See A119034 for a table of cross-references.
Sequence in context: A159994 A278178 A190266 * A152518 A210396 A289482
KEYWORD
nonn,base,more
AUTHOR
Giovanni Resta, May 10 2006
STATUS
approved