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A119158
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Triangular numbers composed of digits {2,4,5}.
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2
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45, 55, 25425, 255255, 22542255, 244525555, 2245524452445, 2445254445525, 5255545252454245, 444222245455224445, 4544525455555255444225, 5554545454254522254255544522452525245
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refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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COMMENTS
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a(13) > 10^40.
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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,more
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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