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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A219602 Primes p such that p^2-2 is composite. 1
11, 17, 23, 31, 41, 53, 59, 67, 73, 79, 83, 97, 101, 109, 113, 137, 149, 151, 157, 163, 167, 179, 181, 193, 197, 199, 227, 229, 241, 251, 263, 269, 271, 277, 281, 283, 307, 311, 317, 331, 347, 349, 353, 367, 373, 379, 383, 389, 397, 401, 409, 419, 431 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..53.

MATHEMATICA

Select[Prime[Range[83]], ! PrimeQ[#^2 - 2] &]

CROSSREFS

Cf. A062326.

Sequence in context: A275596 A158913 A066938 * A242260 A076812 A074207

Adjacent sequences:  A219599 A219600 A219601 * A219603 A219604 A219605

KEYWORD

nonn

AUTHOR

Jayanta Basu, Apr 12 2013

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 16 06:02 EDT 2019. Contains 328046 sequences. (Running on oeis4.)