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!)
A242835 Primes formed by the initial digits of the decimal expansion of the square root of 5. 0
2, 223, 22360679774997896964091 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

There is no other term with less than 111 digits.

a(4) has 1506 digits. - Hiroaki Yamanouchi, Sep 11 2014

LINKS

Table of n, a(n) for n=1..3.

EXAMPLE

Decimal expansion of sqrt(5) begins: 2.23606797749978969640917366... - Wesley Ivan Hurt, May 26 2014

CROSSREFS

Cf. A005042, A007512, A072952, A119343.

Cf. A002163 (Decimal Expansion of sqrt(5)).

Sequence in context: A117076 A132936 A110715 * A270713 A071225 A212082

Adjacent sequences:  A242832 A242833 A242834 * A242836 A242837 A242838

KEYWORD

nonn,base,bref

AUTHOR

Felix Fröhlich, May 23 2014

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 February 18 00:37 EST 2020. Contains 332006 sequences. (Running on oeis4.)