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A136950
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Numbers n such that n and the square of n use only the digits 0, 4, 5, 6 and 9.
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0
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0, 64, 640, 6400, 64000, 640000, 6400000, 64000000, 640000000, 6400000000, 64000000000, 640000000000, 6400000000000, 9949906555064, 64000000000000, 99499065550640, 99950460549564, 640000000000000, 969559459994564, 994990655506400, 999504605495640
(list; graph; refs; listen; history; internal format)
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