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A116307
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Numbers n such that n times n+1 gives the concatenation of two numbers m and m+3.
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4
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83, 77394229, 89158935, 36623663376237623663376337, 37633762366336633762366237, 62366237633663366237633763, 63376336623762376336623663, 86194223018927804587702130
(list; graph; refs; listen; history; internal format)
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