Numbers k such that 2*10^k+9 is prime.

A101392

Numbers k such that 2*10^k+9 is prime.

Terms

    a(0) =0a(1) =1a(2) =5a(3) =25a(4) =455a(5) =761a(6) =9205a(7) =13561a(8) =15955a(9) =26669a(10) =113941

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