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 A104128 a(n) = 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: A287826 A155593 A239990 * A014341 A253009 A291389 Adjacent sequences:  A104125 A104126 A104127 * A104129 A104130 A104131 KEYWORD easy,nonn,changed 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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