Numbers k such that 2*14^k-1 is prime.

A273517

Numbers k such that 2*14^k-1 is prime.

Terms

    a(0) =4a(1) =10a(2) =124a(3) =550a(4) =4720a(5) =14644a(6) =23896a(7) =83384a(8) =95492

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