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A119175
Numbers k such that the k-th triangular number contains only digits {2,6,8}.
2
3, 7, 11, 36, 72, 676, 1287, 2108, 11512, 21112, 23927, 35447, 37112, 41527, 67323, 35289847, 41633847, 11684368072, 24026103588, 364110500487, 7566093164465563
OFFSET
1,1
COMMENTS
Next term exceeds 1.4*10^16.
CROSSREFS
Cf. A000217, A119174. See A119034 for a table of cross-references.
Sequence in context: A333424 A186893 A051919 * A038913 A141178 A362005
KEYWORD
nonn,base,more
AUTHOR
Giovanni Resta, May 10 2006
STATUS
approved