OFFSET
1,1
PROG
(PARI) a(n) = {my(k=1, p=prime(n)); while(abs(p-qfbclassno(-4*k))>0, k++); k; }
CROSSREFS
KEYWORD
nonn
AUTHOR
Benoit Cloitre, Feb 01 2003
EXTENSIONS
More terms from Jinyuan Wang, Apr 03 2020
STATUS
approved