Numbers k such that 2*k+1, 4*k+1, 8*k+1, 16*k+1, 32*k+1, 64*k+1, 128*k+1 and 256*k+1 are primes.
A124416
Numbers k such that 2*k+1, 4*k+1, 8*k+1, 16*k+1, 32*k+1, 64*k+1, 128*k+1 and 256*k+1 are primes.
Terms
- a(0) =7757430a(1) =31286970a(2) =360821505a(3) =365536215a(4) =414779430a(5) =418803000a(6) =428547690a(7) =428823900a(8) =434768475a(9) =508654155a(10) =584808795a(11) =732681630a(12) =809814510a(13) =846079035a(14) =857095380a(15) =968314215a(16) =1115279880a(17) =1187901285a(18) =1193371860a(19) =1244805450
External references
- oeis: A124416