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A115682
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Triangular numbers whose digit reversal is a pentagonal number (A000326).
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0
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1, 10, 15, 21, 210, 62481, 67896, 557040, 2618616, 10095771, 10550121, 28883800, 62490610, 1524872700, 2708516800, 5491258003, 103352174628, 299536839001
(list; graph; refs; listen; history; internal format)
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