Numbers n such that n remains prime through 6 iterations of function f(x) = 2x + 1.

A278932

Numbers n such that n remains prime through 6 iterations of function f(x) = 2x + 1.

Terms

    a(0) =1122659a(1) =2164229a(2) =2329469a(3) =10257809a(4) =10309889a(5) =12314699a(6) =14030309a(7) =14145539a(8) =19099919a(9) =23103659a(10) =24176129a(11) =28843649a(12) =37088729a(13) =38199839a(14) =42389519a(15) =49160099a(16) =50785439a(17) =52554569a(18) =62800169a(19) =68718059a(20) =85864769a(21) =88174049a(22) =95831189a(23) =105109139a(24) =105388169

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