a(n) is the largest number that can be written as x + y with x and y coprime and such that each of x, y, and x + y are prime(n)-smooth.

A376925

a(n) is the largest number that can be written as x + y with x and y coprime and such that each of x, y, and x + y are prime(n)-smooth.

Terms

    a(0) =2a(1) =9a(2) =128a(3) =4375a(4) =18225a(5) =1771561a(6) =27295744a(7) =1375325568a(8) =6313843404a(9) =289478389760

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