|
|
A104110
|
|
Nonnegative numbers k such that k^2 + 42 is prime.
|
|
2
|
|
|
1, 5, 11, 13, 17, 23, 29, 41, 47, 53, 55, 89, 95, 101, 103, 107, 109, 115, 121, 125, 131, 145, 157, 169, 179, 181, 185, 191, 197, 211, 221, 233, 239, 247, 271, 277, 289, 299, 307, 311, 313, 325, 349, 355, 359, 361, 367, 403, 421, 425, 433, 443, 457, 467, 493
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,2
|
|
LINKS
|
|
|
MATHEMATICA
|
Select[Range[1, 500, 2], PrimeQ[#^2+42]&] (* Harvey P. Dale, May 25 2017 *)
|
|
PROG
|
(PARI) for(i=0, 422, if(isprime(i^2+42), print1(i ", ")))
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|