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Search: id:A162575
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| A162575 |
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Primes of the form 2^x+2*x+y+2^y, with x and y any integer. |
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3
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| 2, 5, 7, 11, 17, 19, 41, 43, 53, 61, 71, 79, 113, 139, 149, 179, 211, 277, 283, 541, 563, 1051, 2063, 2081, 2083, 2591, 4129, 4157, 8209, 8219, 8221, 8353, 16547, 32797, 32801, 32933, 33827, 65579, 65581, 66089, 131113, 131143, 131231, 131627, 135209
(list; graph; listen)
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OFFSET
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1,1
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MATHEMATICA
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f[x_, y_]:=2^x+2*x+y+2^y; lst={}; Do[Do[p=f[x, y]; If[PrimeQ[p], AppendTo[lst, p]], {y, -5!, 6!}], {x, -5!, 6!}]; Take[Union[lst], 5! ]
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CROSSREFS
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Cf. A162573, A162574
Sequence in context: A023207 A038611 A023213 this_sequence A066408 A142352 A062044
Adjacent sequences: A162572 A162573 A162574 this_sequence A162576 A162577 A162578
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KEYWORD
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nonn,uned
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AUTHOR
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Vladimir Orlovsky (4vladimir(AT)gmail.com), Jul 06 2009
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