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A119109
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Triangular numbers composed of digits {1,2,9}.
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2
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1, 21, 91, 2211, 222111, 22221111, 229119121, 291212911, 2222211111, 222222111111, 299992122991, 1122921211191, 22222221111111, 2222222211111111, 21212929921912191, 222222222111111111, 22222222221111111111, 2222222222211111111111, 191929912211129991991191
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,2
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LINKS
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FORMULA
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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