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A136951
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Numbers n such that n and the square of n use only the digits 0, 4, 5, 7 and 8.
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1
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0, 88, 878, 880, 888, 7588, 8780, 8800, 8880, 74078, 75878, 75880, 87800, 88000, 88800, 740578, 740588, 740780, 755478, 758780, 758800, 840088, 878000, 880000, 880088, 888000, 7405780, 7405880, 7407800, 7554780, 7587800, 7588000, 8400880, 8705088, 8780000, 8800000, 8800448, 8800880, 8880000, 74057800, 74058800, 74078000, 74487888
(list; graph; refs; listen; history; internal format)
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