

A208506


p^(p+1) + (p+1)^p, where p = prime(n).


2



17, 145, 23401, 7861953, 3881436747409, 4731091158953433, 16248996011806421522977, 42832853457545958193355601, 535823088031930481975544151644865, 81325936178163422902293018227199467668020601
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OFFSET

1,1


COMMENTS

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...


LINKS



MATHEMATICA

ok[n_] := n^(n+1)+(n+1)^n; Table[ok[n], {n, Prime[Range[10]]}] (* Harvey P. Dale, Feb 27 2012 *)


PROG

(PARI) A208506(n)=(1+n=prime(n))^n+n^(n+1)


CROSSREFS



KEYWORD

nonn


AUTHOR



STATUS

approved



