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A208506
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p^(p+1) + (p+1)^p, where p = prime(n).
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2
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17, 145, 23401, 7861953, 3881436747409, 4731091158953433, 16248996011806421522977, 42832853457545958193355601, 535823088031930481975544151644865, 81325936178163422902293018227199467668020601
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OFFSET
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1,1
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COMMENTS
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The definition has been the erroneous description of A104128 (as pointed out by H. P. Dale), prior to correction by R. J. Mathar on Feb 27 2012.
Sum of reciprocals rapidly converges to 0.065762941547548273299583...
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LINKS
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MATHEMATICA
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ok[n_] := n^(n+1)+(n+1)^n; Table[ok[n], {n, Prime[Range[10]]}] (* Harvey P. Dale, Feb 27 2012 *)
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PROG
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(PARI) A208506(n)=(1+n=prime(n))^n+n^(n+1)
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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