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A116124
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Numbers n such that n concatenated with n-5 gives the product of two numbers which differ by 5.
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5
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61, 65479, 84289, 106609, 225649, 275599, 453589, 1869505, 2272555, 2738291, 3221951, 1667833021, 2475062749, 2525062249, 3500010739, 9032526511, 9225507211, 1753016898055, 1860598847399, 3233666953849, 3379207972471
(list; graph; refs; listen; history; internal format)
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