OFFSET
1,1
COMMENTS
This sequence is finite and this is the full list.
Equivalently, negative discriminants of orders whose class group is isomorphic to C_2 X C_2 (negated). - Jianing Song, May 17 2021
LINKS
Rick L. Shepherd, Binary quadratic forms and genus theory, Master of Arts Thesis, University of North Carolina at Greensboro, 2013
PROG
(PARI) isA329182(d) = (d>0) && ((d%4==0)||(d%4==3)) && quadclassunit(-d)[2]==[2, 2] \\ Jianing Song, May 17 2021
CROSSREFS
KEYWORD
nonn,fini,full
AUTHOR
Jianing Song, Dec 05 2019
STATUS
approved