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!)
A213996 Primes p=u^2+v^2 such that p+u or p+v is the next prime after p. 1
2, 5, 29, 61, 89, 97, 157, 181, 317, 457, 829, 1229, 2273, 2617, 3061, 3169, 3677, 4229, 4289, 4861, 5881, 6577, 13789, 15661, 16657, 21061, 26633, 27953, 28597, 30689, 32077, 32237, 33589, 34261, 34369, 37313, 47977, 51109, 53377, 59149, 70289, 71389, 73477, 84697, 93089, 96757, 97397, 102161 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..48.

EXAMPLE

5 is a term: 5=2^2+1^2 and 5+2=7 is the next prime after 5.

457 is a term: 457=21^2+4^2 and 457+4=461 is the next prime after 457.

CROSSREFS

Cf. A213995.

Sequence in context: A126107 A193901 A083472 * A057794 A257545 A073715

Adjacent sequences:  A213993 A213994 A213995 * A213997 A213998 A213999

KEYWORD

nonn

AUTHOR

Thomas Ordowski, Jun 30 2012

EXTENSIONS

Terms >= 61 by Joerg Arndt, Jul 01 2012.

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 August 8 02:45 EDT 2020. Contains 336290 sequences. (Running on oeis4.)