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A171240
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a(n) = n^d+d^n where d = A013632(n) is the distance to the next prime.
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0
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2, 3, 17, 5, 57, 7, 18785, 7073, 593, 11, 2169, 13, 67137425, 4785713, 32993, 17, 131361, 19, 274878037265, 3486792401, 2097593, 23, 789730223201638705, 59604644783353249, 1125899907233249, 2541865845905, 134218457, 29, 536871753, 31
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OFFSET
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1,1
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LINKS
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MATHEMATICA
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dnp[n_]:=Module[{d=NextPrime[n]-n}, n^d+d^n]; Array[dnp, 20](* Harvey P. Dale, Jun 23 2017 *)
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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Definition and some values corrected - R. J. Mathar, Jun 04 2010
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STATUS
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approved
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