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A119087
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Triangular numbers composed of digits {0,6,7}.
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2
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6, 66, 666, 6670, 66066, 600060, 67007676, 670677000, 66067760760, 76666077676, 76670776666, 660067006660776, 7600067000007076, 6700677067067607000, 60660060606000770770776700
(list; graph; refs; listen; history; internal format)
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