**Numbers n such that n concatenated with n+7 gives the product of two numbers which differ by 6.**

*145, 384, 505, 820, 7680, 20665, 29748, 480340, 6694209, 77854665, 107541513*

*2 seqfan posts*

Index of A-numbers in seqfan: by ascending order by month by frequency by keyword

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