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A116163
Numbers n such that n concatenated with n+1 gives the product of two numbers which differ by 1.
+0
8
1, 5, 61, 65479, 84289, 106609, 225649, 275599, 453589, 1869505, 2272555, 2738291, 3221951, 1667833021, 2475062749, 2525062249, 3500010739, 9032526511, 9225507211, 1753016898055, 1860598847399, 3233666953849
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Maintained by
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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.
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