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A208506
p^(p+1) + (p+1)^p, where p = prime(n).
2
17, 145, 23401, 7861953, 3881436747409, 4731091158953433, 16248996011806421522977, 42832853457545958193355601, 535823088031930481975544151644865, 81325936178163422902293018227199467668020601
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
Sequence in context: A364155 A083294 A196780 * A299599 A244852 A064102
KEYWORD
nonn
AUTHOR
M. F. Hasler, Feb 27 2012
STATUS
approved