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A287842
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Primes of the form (1 + x)^(2^y) + x^(2^y) where x is a divisor of y.
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1
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OFFSET
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1,1
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LINKS
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EXAMPLE
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97 is in this sequence because (1 + 2)^(2^2) + 2^(2^2) = 97 is prime and 2 is a divisor of 2.
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MATHEMATICA
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Sort@ Flatten@ Table[Function[{x, y}, Select[(1 + x)^(2^y) + x^(2^y), PrimeQ]] @@ {Divisors@ #, #} &@ n, {n, 12}] (* Michael De Vlieger, Jun 01 2017 *)
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CROSSREFS
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KEYWORD
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nonn,more
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AUTHOR
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STATUS
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approved
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