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A119197
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Numbers k such that the k-th triangular number contains only digits {3,6,8}.
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2
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2, 3, 8, 11, 36, 816, 4211, 13163, 409483, 1128391, 2583163, 87935963, 356051588, 35683017483, 87964636836, 11566016486836, 36978011484891
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OFFSET
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1,1
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COMMENTS
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Next term exceeds 1.4*10^16.
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LINKS
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CROSSREFS
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KEYWORD
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nonn,base,more
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AUTHOR
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STATUS
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approved
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