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A137124
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Numbers n such that n and the square of n use only the digits 3, 4, 5, 7 and 8.
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1
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88, 588, 888, 7378, 7588, 8588, 74388, 88588, 738538, 743878, 745478, 747378, 758588, 5878388, 7338588, 7448878, 7573538, 8878878, 57843538, 73385888, 73877438, 73883588, 75745478, 75784878, 88534388, 578573538, 733878388, 757544438, 7384753588, 7575344438, 7587775588, 8575883388, 57773588588, 73738374388, 74534384538
(list; graph; refs; listen; history; internal format)
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