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A116231
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Numbers n such that n times n+9 gives the concatenation of two numbers m and m-9.
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3
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7, 63, 42752, 57240, 75422, 425071, 574921, 979527, 4301392, 5698600, 7028665, 4925000746, 5074999246, 7748266573, 8511881483, 8814851183, 7059602159671, 7106167933827, 7439286611620, 7485852385776, 46791112884924
(list; graph; refs; listen; history; internal format)
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