This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A157289 Decimal expansion of Zeta(3)/Zeta(6). 2
 1, 1, 8, 1, 5, 6, 4, 9, 4, 9, 0, 1, 0, 2, 5, 6, 9, 1, 2, 5, 6, 9, 3, 9, 9, 7, 3, 4, 1, 6, 0, 4, 5, 4, 2, 6, 0, 5, 4, 7, 0, 2, 3, 2, 6, 0, 7, 6, 8, 6, 8, 2, 6, 1, 0, 2, 8, 3, 0, 4, 3, 1, 4, 8, 8, 7, 7, 2, 0, 5, 4, 2, 1, 1, 1, 0, 3, 1, 8, 8, 3, 9, 9, 0, 0, 2, 9, 9, 4, 8, 7, 1, 1, 8, 4, 4, 4, 9, 2, 7, 0, 1, 1, 4, 8 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS The product_{p = primes = A000040} (1+1/p^3), the cubic analog to A082020. LINKS FORMULA Equals A002117/A013664 = product_{i} (1+1/A030078(i)). EXAMPLE 1.181564949010256912569399734... = (1+1/2^3)*(1+1/3^3)*(1+1/5^3)*(1+1/7^3)*... MAPLE evalf(Zeta(3)/Zeta(6)) ; MATHEMATICA RealDigits[Zeta[3]/Zeta[6], 10, 120][[1]] (* Harvey P. Dale, Jul 23 2016 *) CROSSREFS Sequence in context: A153495 A046471 A126585 * A194097 A226604 A154213 Adjacent sequences:  A157286 A157287 A157288 * A157290 A157291 A157292 KEYWORD cons,nonn AUTHOR R. J. Mathar, Feb 26 2009 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 October 18 20:42 EDT 2019. Contains 328197 sequences. (Running on oeis4.)