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A119103
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Triangular numbers composed of digits {1,2,6}.
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2
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1, 6, 21, 66, 666, 2211, 6216, 212226, 222111, 1222266, 1261666, 16626261, 22121226, 22221111, 121111266, 126222216, 661261161, 2162616261, 2221211226, 2222211111, 21166222626, 66126661611, 166122226621
(list; graph; refs; listen; history; internal format)
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