OFFSET
1,1
COMMENTS
From Wolfdieter Lang, Oct 24 2013: (Start)
Each a(n) is of course congruent 3 (mod 4).
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..10000
FORMULA
a(n) = A186303(n)-1.
EXAMPLE
Degree of minimal polynomial C(prime 7 (mod 8), x):
n = 2, p7m8(2) = A007522(2) = 23, delta(23) = 11. - Wolfdieter Lang, Oct 24 2013
MATHEMATICA
(Select[8*Range[200] - 1, PrimeQ] - 1)/2 (* Amiram Eldar, Jun 08 2022 *)
PROG
(PARI) is(n)=n%4==3&&isprime(2*n+1) \\ Charles R Greathouse IV, Jan 22 2013
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Marco Matosic, Feb 17 2011
STATUS
approved