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

 

Logo

Please make a donation to keep the OEIS running. We are now in our 55th year. In the past year we added 12000 new sequences and reached 8000 citations (which often say "discovered thanks to the OEIS"). We need to raise money to hire someone to manage submissions, which would reduce the load on our editors and speed up editing.
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A201932 Decimal expansion of the greatest x satisfying x^2+5x+1=e^x. 3
3, 3, 7, 7, 3, 6, 1, 4, 8, 4, 1, 9, 7, 4, 0, 0, 5, 7, 9, 2, 5, 5, 0, 2, 5, 0, 5, 8, 8, 8, 9, 2, 1, 0, 6, 1, 4, 3, 9, 2, 6, 1, 0, 8, 0, 3, 0, 3, 1, 5, 9, 4, 9, 4, 8, 2, 5, 0, 4, 0, 2, 2, 1, 0, 4, 2, 4, 4, 1, 7, 7, 6, 0, 9, 0, 2, 6, 1, 0, 7, 7, 4, 6, 8, 2, 9, 4, 9, 2, 4, 0, 2, 5, 7, 2, 0, 2, 7, 5 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

See A201741 for a guide to related sequences.  The Mathematica program includes a graph.

LINKS

Table of n, a(n) for n=1..99.

EXAMPLE

least:  -4.79309545512749358956562110850420...

greatest:  3.377361484197400579255025058889...

MATHEMATICA

a = 1; b = 5; c = 1;

f[x_] := a*x^2 + b*x + c; g[x_] := E^x

Plot[{f[x], g[x]}, {x, -5, 3.5}, {AxesOrigin -> {0, 0}}]

r = x /. FindRoot[f[x] == g[x], {x, -4.8, -4.7}, WorkingPrecision -> 110]

RealDigits[r]     (* A201931 *)

r = x /. FindRoot[f[x] == g[x], {x, 3.3, 3.4}, WorkingPrecision -> 110]

RealDigits[r]     (* A201932 *)

CROSSREFS

Cf. A201741.

Sequence in context: A000199 A243099 A324877 * A161771 A160515 A105670

Adjacent sequences:  A201929 A201930 A201931 * A201933 A201934 A201935

KEYWORD

nonn,cons

AUTHOR

Clark Kimberling, Dec 06 2011

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 December 14 15:08 EST 2019. Contains 329979 sequences. (Running on oeis4.)