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A119208
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Triangular numbers composed of digits {4,5,9}.
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2
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45, 55, 595, 5995, 49455, 55945, 594595, 5559445, 555594445, 9955945495, 55555944445, 95444955595, 5555559444445, 9545454599955, 499594959455595, 549999555454495, 555555594444445, 55555555944444445
(list; graph; refs; listen; history; internal format)
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