Numbers k such that 10^(2*k+1)-8*10^k-1 is prime.

A183184

Numbers k such that 10^(2*k+1)-8*10^k-1 is prime.

Terms

    a(0) =1a(1) =5a(2) =13a(3) =43a(4) =169a(5) =181a(6) =1579a(7) =18077a(8) =22652a(9) =157363

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