login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A062546 Decimal expansion of the 2nd Du Bois-Reymond constant. 15
1, 9, 4, 5, 2, 8, 0, 4, 9, 4, 6, 5, 3, 2, 5, 1, 1, 3, 6, 1, 5, 2, 1, 3, 7, 3, 0, 2, 8, 7, 5, 0, 3, 9, 0, 6, 5, 9, 0, 1, 5, 7, 7, 8, 5, 2, 7, 5, 9, 2, 3, 6, 6, 2, 0, 4, 3, 5, 6, 3, 9, 1, 1, 2, 6, 1, 2, 8, 6, 8, 9, 8, 0, 3, 9, 5, 2, 8, 8, 8, 1, 6, 9, 2, 1, 5, 6, 2, 4, 2, 5, 3, 9, 5, 6, 0, 8, 9, 7, 3, 8, 6, 8, 7, 6 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

0,2

REFERENCES

S. R. Finch, Mathematical Constants, Cambridge, 2003, pp. 238.

Francois Le Lionnais, Les nombres remarquables, Paris, Hermann, 1983, pp. 23.

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..10000

Simon Plouffe, Du Bois-Reymond constant to 1024 digits

Simon Plouffe, The Du Bois-Reymond constant to 1024 digits

Eric Weisstein's World of Mathematics, Du Bois-Reymond Constants

FORMULA

Equals (exp(2)-7)/2.

Continued fraction: [0, 5, 7, 9, 11, 13, ...]. - Gerald McGarvey, Oct 15 2005

Equals exp(1)*cosh(1) - 4 = BesselI(1/2, 1)/BesselI(3/2, 1) - 3. - Terry D. Grant, Jul 20 2018

EXAMPLE

0.194528049465325113...

MATHEMATICA

RealDigits[(E^2 - 7)/2, 10, 105][[1]] (* Jean-Fran├žois Alcover, Jun 12 2018 *)

CROSSREFS

Cf. A062545, A224196 (c3), A207528 (c4), A243108 (c5), A245333 (c6).

Cf. A073747 (has a similar continued fraction)..

Sequence in context: A275915 A199179 A300072 * A245887 A308226 A019880

Adjacent sequences:  A062543 A062544 A062545 * A062547 A062548 A062549

KEYWORD

cons,easy,nonn

AUTHOR

Jason Earls, Jun 26 2001

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.

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 14 04:44 EDT 2019. Contains 327995 sequences. (Running on oeis4.)