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A137008
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Numbers n such that n and the square of n use only the digits 1, 2, 5, 7 and 8.
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1
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1, 5, 11, 15, 85, 285, 715, 1585, 2285, 8711, 28511, 52515, 52715, 72285, 151285, 228511, 285515, 722211, 852715, 878511, 2858711, 2878511, 7182285, 7182515, 7271285, 8785711, 8877811, 8881585, 15878511, 28551285, 71782715, 75582585, 111887511, 125585515, 277881585, 278852515, 287275515, 727157285, 758785711, 882185515, 887285515
(list; graph; refs; listen; history; internal format)
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