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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A242828 Primes formed by the initial digits of the decimal expansion of 1/17, starting at the first nonzero digit in the expansion. 4
5, 5882352941, 588235294117, 588235294117647058823529411764705882352941176470588235294117 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

There is no other term with 126 digits or less.

LINKS

Table of n, a(n) for n=1..4.

PROG

(PARI) lista(nn) = {v = [5, 8, 8, 2, 3, 5, 2, 9, 4, 1, 1, 7, 6, 4, 7, 0]; n = 0; for (i=0, nn, n = 10*n+ v[(i % 16)+1]; if (ispseudoprime(n), print1(#Str(n), ", ")); ); } \\ Michel Marcus, May 27 2014

CROSSREFS

Cf. A007450.

Corresponding sequences for 1/k: A242824 (k=7), A093676 (k=12), A242826 (k=13), A242827(k=14), A242833 (k=19).

Sequence in context: A115763 A052000 A094467 * A091511 A177164 A273941

Adjacent sequences:  A242825 A242826 A242827 * A242829 A242830 A242831

KEYWORD

nonn,base

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 April 19 16:18 EDT 2019. Contains 322282 sequences. (Running on oeis4.)