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A116229
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Numbers n such that n times n+6 gives the concatenation of two numbers m and m-9.
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4
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8, 98, 998, 9998, 99998, 999998, 9999998, 99999998, 999999998, 9999999998, 36363636361, 45454545452, 54545454543, 63636363634, 72727272725, 81818181816, 90909090907, 99999999998, 999999999998, 9999999999998
(list; graph; refs; listen; history; internal format)
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