The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A093596 a(n) = Pi^(2n)*denominator of Sum_{{k in A030059} 1/k^(2n). 1
 2, 2, 691, 7234, 174611, 163327586881, 13571120588, 55769228412163778, 1154372017217796891921391, 45587914559383477650447161, 786244320265033260236106076, 1325861528365506758393998232189714777 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Eric Weisstein's World of Mathematics, Prime Sums FORMULA (Denominator of (zeta(2n)^2-zeta(4n))/(2zeta(2n)zeta(4n)))/Pi^(2n). See Eqns (28) to (31) of the link. EXAMPLE 9/(2*Pi^2), 15/(2*Pi^4), 11340/(691*Pi^6), 278775/(7234*Pi^8), ... CROSSREFS Cf. A030059, A093595. Sequence in context: A067091 A334599 A013556 * A095304 A111819 A287764 Adjacent sequences:  A093593 A093594 A093595 * A093597 A093598 A093599 KEYWORD nonn,frac AUTHOR Eric W. Weisstein, Apr 03 2004 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified July 27 05:26 EDT 2021. Contains 346305 sequences. (Running on oeis4.)