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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A287924 Numbers n such that A287922(n) is a prime. 1
2, 3, 4, 6, 7, 12, 15, 19, 21, 25, 27, 33, 38, 39, 44, 51, 59, 62, 63, 65, 66, 69, 74, 90, 93, 96, 101, 106, 108, 111, 112, 123, 132, 138, 143, 144, 147, 153, 162, 163, 166, 168, 181, 187, 188, 203, 219, 224, 229, 241, 243, 255, 258, 259, 269, 273, 300 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Corresponding prime in A045637.

LINKS

Table of n, a(n) for n=1..57.

MATHEMATICA

Select[Table[n, {n, 300}], PrimeQ[Prime[#]^2 + 4] &]

CROSSREFS

Cf. A287922, A045637.

Sequence in context: A018276 A057732 A092591 * A039947 A096477 A039059

Adjacent sequences:  A287921 A287922 A287923 * A287925 A287926 A287927

KEYWORD

nonn

AUTHOR

XU Pingya, Jun 02 2017

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 21 19:59 EDT 2019. Contains 327282 sequences. (Running on oeis4.)