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A058444
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Squares composed of digits {0,4,9}, not ending with zero.
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2
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4, 9, 49, 9409, 44944, 994009, 9909904, 99940009, 404090404, 9999400009, 999994000009, 4004009004004, 9449494444009, 99999940000009, 9999999400000009, 40004000900040004, 999999994000000009
(list; graph; refs; listen; history; internal format)
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