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!)
A270896 Values of n for which n^2 is a Sierpiński number. 1
134959, 2245939, 2468549, 2505707, 4233101, 7248203, 7514681, 8524057, 10379689, 11105999, 11701529, 13050139, 14535919, 17224783, 17918117, 20887471, 22609447, 23352049, 26616221, 29156453, 29583953, 29913997, 31273301, 32046613, 35672821, 35882309 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..26.

Wikipedia, Sierpinski number

FORMULA

a(n) = sqrt(A270895(n)).

CROSSREFS

Cf. A076336, A233469, A270895.

Sequence in context: A234206 A133528 A151940 * A271767 A104440 A290036

Adjacent sequences:  A270893 A270894 A270895 * A270897 A270898 A270899

KEYWORD

nonn

AUTHOR

Arkadiusz Wesolowski, Mar 25 2016

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 28 16:09 EDT 2021. Contains 348329 sequences. (Running on oeis4.)