|
Search: id:A021002
|
|
|
| A021002 |
|
Decimal expansion of Zeta(2)*Zeta(3)*Zeta(4)*... |
|
+0
7
|
|
| 2, 2, 9, 4, 8, 5, 6, 5, 9, 1, 6, 7, 3, 3, 1, 3, 7, 9, 4, 1, 8, 3, 5, 1, 5, 8, 3, 1, 3, 4, 4, 3, 1, 1, 2, 8, 8, 7, 1, 3, 1, 6, 3, 7, 9, 9, 4, 4, 1, 6, 6, 8, 6, 7, 3, 2, 7, 5, 8, 1, 4, 0, 3, 0, 0, 0, 1, 3, 9, 7, 0, 1, 2, 0, 1, 1, 3, 2, 3, 1, 5, 7, 5, 0, 1, 7, 9, 6, 8, 0, 4, 5, 2, 3, 2, 7, 2, 4, 9, 0, 8, 1, 3, 8, 4
(list; cons; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
COMMENT
|
A very good approximation is 2e-Pi=~2.29497100332829723225793155942... - Marco Matosic (marcomatosic(AT)hotmail.com) Nov 16 2005.
|
|
REFERENCES
|
S. R. Finch, Mathematical Constants, Cambridge, 2003, pp. 40-53.
|
|
LINKS
|
S. R. Finch, Apery's Constant
Eric Weisstein's World of Mathematics, Abelian Group
|
|
EXAMPLE
|
2.29485659...
2.2948565916733137941835158313443112887131637994416686732758140300...
|
|
MAPLE
|
Digits := 256; product(Zeta(1.0*n), n=2..1000);
|
|
MATHEMATICA
|
p = Product[ N[ Zeta[n], 256], {n, 2, 104}]; RealDigits[p, 10, 111][[1]] (* Robert G. Wilson v *)
|
|
CROSSREFS
|
Cf. A002117.
Sequence in context: A021440 A157216 A020776 this_sequence A103710 A093589 A073315
Adjacent sequences: A020999 A021000 A021001 this_sequence A021003 A021004 A021005
|
|
KEYWORD
|
cons,nonn
|
|
AUTHOR
|
Andre Neumann Kauffman (ank(AT)nlink.com.br)
|
|
EXTENSIONS
|
More terms from Simon Plouffe (simon.plouffe(AT)gmail.com), Jan 07 2002
Further terms from Robert G. Wilson v (rgwv(at)rgwv.com), Nov 22 2005
|
|
|
Search completed in 0.005 seconds
|
