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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A197030 Decimal expansion of the shortest distance from x axis through (1,e) to y axis. 1
5, 0, 6, 0, 9, 5, 4, 6, 4, 3, 7, 5, 4, 8, 9, 2, 5, 1, 4, 6, 3, 0, 1, 2, 3, 8, 5, 0, 4, 5, 3, 0, 6, 4, 4, 0, 9, 0, 0, 3, 3, 8, 5, 3, 3, 1, 4, 6, 5, 4, 0, 1, 5, 6, 1, 9, 5, 4, 2, 7, 4, 3, 1, 2, 0, 2, 7, 4, 0, 1, 6, 0, 2, 7, 6, 2, 4, 5, 2, 8, 2, 5, 8, 5, 5, 3, 7, 3, 3, 6, 6, 2, 2, 9, 6, 3, 7, 8, 4, 4 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

See A197008 for a discussion and guide to related sequences.

LINKS

Table of n, a(n) for n=1..100.

EXAMPLE

d=5.06095464375489251463012385045306440900...

x-intercept=(2.9477...,0)

y-intercept=(0,4.1138...)

MATHEMATICA

f[x_] := x^2 + (k*x/(x - h))^2; t = h + (h*k^2)^(1/3);

h = 1; k = E; d = N[f[t]^(1/2), 100]

RealDigits[d] (* A197030 *)

x = N[t] (* x-intercept (h, k) *)

y = N[k*t/(t - h)] (* y-intercept *)

Show[Plot[k + k (x - h)/(h - t), {x, 0, t}],

ContourPlot[(x - h)^2 + (y - k)^2 == .002, {x, 0, 4}, {y, 0, 5}], PlotRange -> All, AspectRatio -> Automatic]

CROSSREFS

Cf. A197008.

Sequence in context: A004552 A130415 A197029 * A035550 A197508 A159751

Adjacent sequences:  A197027 A197028 A197029 * A197031 A197032 A197033

KEYWORD

nonn,cons

AUTHOR

Clark Kimberling, Oct 10 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 September 18 13:54 EDT 2021. Contains 347527 sequences. (Running on oeis4.)