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A116258
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Numbers n such that n times n+9 gives the concatenation of two numbers m and m-5.
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4
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8444, 8809, 69125298546226023970, 69855225553525294043, 74604750601020544518, 75334677608319814591, 92496418993920707745, 93226346001219977818, 97975871048715228293, 98705798056014498366
(list; graph; refs; listen; history; internal format)
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