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A136954
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Numbers n such that n and the square of n use only the digits 0, 4, 6, 7 and 8.
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1
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0, 8, 78, 80, 88, 780, 800, 878, 880, 7800, 8000, 8780, 8800, 8874, 68474, 78000, 80000, 80474, 80478, 86478, 87800, 88000, 88740, 88808, 684740, 778874, 780000, 800000, 804740, 804780, 864780, 874474, 878000, 880000, 887400, 888080, 6840078, 6847400, 7788740, 7800000, 8000000, 8040448, 8044008, 8047400, 8047800, 8607474, 8646774
(list; graph; refs; listen; history; internal format)
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