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A119116
Numbers k such that the k-th triangular number contains only digits {1,3,6}.
2
1, 2, 3, 8, 11, 16, 36, 163, 816, 115166, 475633, 1151836, 5677378, 35585421, 35598136, 51596833, 258114833, 1152095166, 11060118546, 112366468411, 1797838514253, 11234888843541, 78909614580621, 1632858433307288
OFFSET
1,2
CROSSREFS
Cf. A000217, A119115. See A119034 for a table of cross-references.
Sequence in context: A039000 A059671 A212771 * A138756 A291202 A091076
KEYWORD
nonn,base
AUTHOR
Giovanni Resta, May 10 2006
STATUS
approved