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 A117579 Numerator of Sum[i=1..n] 1/(p(i)^p(i)), p(i) = i-th prime. 7
 1, 31, 96983, 79870008269, 22787845491220720044859, 6901871132161346809864777612017764827, 5709505682874900155174610004469973097336266239002423739879, 11295798267103963562742898223286548990219261148710007871289771185589362412305596041 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS FORMULA a(n) = Numerator of Sum[i=1..n] 1/(p(i)^p(i)). a(n) = Numerator of Sum[i=1..n] 1/(A000040(i)^A000040(i)). a(n) = Numerator of Sum[i=1..n] 1/A051674(i). EXAMPLE 1/4, 31/108, 96983/337500, 79870008269/277945762500, 22787845491220720044859/79301169838123235887500, 6901871132161346809864777612017764827/24018350267611933650627567399079537500 MATHEMATICA Numerator[Accumulate[1/#^#&/@Prime[Range[10]]]] (* Harvey P. Dale, Jan 24 2013 *) CROSSREFS Denominators = A076265. Cf. A000040, A051674. Sequence in context: A033176 A188956 A218142 * A107122 A059113 A057839 Adjacent sequences:  A117576 A117577 A117578 * A117580 A117581 A117582 KEYWORD easy,frac,nonn AUTHOR Jonathan Vos Post, Mar 29 2006 EXTENSIONS Corrected and extended by Harvey P. Dale, Jan 24 2013 STATUS approved

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