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A119043
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Triangular numbers composed of digits {0,1,7}.
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2
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1, 10, 171, 1711, 1770, 10011, 111117701071, 17170010070077710, 101711101707777771, 701000700077010700, 1701111717707771071, 10010107100007777700, 101770070070071771070, 170107111111710707070
(list; graph; refs; listen; history; internal format)
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