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A104128 p+p^(p+1), where p = prime(n). 2
10, 84, 15630, 5764808, 3138428376732, 3937376385699302, 14063084452067724991026, 37589973457545958193355620, 480250763996501976790165756943064, 74462898441675122902293018227199467668020630, 529144398052420314716929933900838757437386767392 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Sum of reciprocals rapidly converges to 0.11196891489794721930017828981362..

LINKS

Ray Chandler, Table of n, a(n) for n = 1..76

FORMULA

a(n) = A000040(n)+A104126(n).

MATHEMATICA

Table[p + p^(p+1), {p, Prime[Range[12]]}] (* Robert G. Wilson v, Feb 27 2012 *)

PROG

(Maxima) A104128(n) := block(

        return(A000040(n)^(1+A000040(n))+A000040(n))

)$ /* R. J. Mathar, Feb 27 2012 */

(PARI) A104128(n)=(n=prime(n))+n^(n+1)   \\ - M. F. Hasler, Feb 26 2012

CROSSREFS

Sequence in context: A027310 A155593 A239990 * A014341 A253009 A081903

Adjacent sequences:  A104125 A104126 A104127 * A104129 A104130 A104131

KEYWORD

easy,nonn

AUTHOR

Cino Hilliard, Mar 06 2005

EXTENSIONS

Definition corrected and incorrect program removed. - R. J. Mathar, Feb 27 2012

More terms from Harvey P. Dale, Feb 27 2012

STATUS

approved

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Last modified March 26 00:51 EDT 2017. Contains 284111 sequences.