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A116319
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n times n+7 gives the concatenation of two numbers m and m+4.
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5
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77, 4328, 5666, 9365, 41505566065992219342, 44035313091289689595, 46429818586950933764, 48959565612248404017, 51040434387751595977, 53570181413049066230, 55964686908710310399, 58494433934007780652
(list; graph; refs; listen; history; internal format)
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