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A104127
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(1+prime(n))^prime(n).
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2
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9, 64, 7776, 2097152, 743008370688, 793714773254144, 2185911559738696531968, 5242880000000000000000000, 55572324035428505185378394701824, 6863037736488300000000000000000000000000000
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OFFSET
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1,1
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COMMENTS
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Sum of reciprocals rapidly converges to 0.1268651887726617214821302614..
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LINKS
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Table of n, a(n) for n=1..10.
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PROG
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(PARI) ptopp1(n) = { local(x, z, sr=0); forprime(x=1, n, z=(x+1)^x; sr+=1./z; print1(z", "); ); print(); print(sr) }
(Maxima) A104127(n) := block(
return((1+A000040(n))^A000040(n))
)$
for n : 1 thru 20 do printf(true, "~d, ", A104127(n)) ; /* R. J. Mathar, Feb 27 2012 */
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CROSSREFS
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Sequence in context: A064546 A217872 A067961 * A043426 A038484 A043021
Adjacent sequences: A104124 A104125 A104126 * A104128 A104129 A104130
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KEYWORD
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easy,nonn
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AUTHOR
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Cino Hilliard (hillcino368(AT)gmail.com), Mar 06 2005
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EXTENSIONS
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Definition (which equaled A078422) corrected and dummy variables in PARI program removed by R. J. Mathar, Oct 23 2009
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STATUS
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approved
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