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A051990 Discriminants of real quadratic fields of ERD-type with class groups of exponent 2 and discriminants of the form D = r^2*k^2+k, k odd. 11
10, 15, 26, 30, 35, 39, 42, 65, 78, 95, 105, 110, 122, 143, 170, 182, 195, 203, 210, 222, 230, 255, 290, 327, 362, 395, 462, 483, 485, 530, 663, 885, 903, 915, 930, 962, 1155, 1157, 1173, 1190, 1218, 1230, 1295, 1370, 1463, 1482, 1518, 1595 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
REFERENCES
R. A. Mollin, Quadratics, CRC Press, 1996, Appendix A, Table A4(1), column D.
LINKS
CROSSREFS
Sequence in context: A146209 A029702 A053330 * A246447 A254362 A373488
KEYWORD
nonn,fini,full
AUTHOR
N. J. A. Sloane, Jan 04 2000
STATUS
approved

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Last modified July 13 01:42 EDT 2024. Contains 374259 sequences. (Running on oeis4.)