A218159 Fundamental discriminants of real quadratic number fields with class number 9.

1129, 3137, 4409, 5521, 6616, 6809, 7573, 7873, 10273, 10721, 11641, 12409, 12657, 13069, 14876, 15629, 16321, 17273, 17989, 18136, 18633, 19441, 21781, 22492, 22497, 23512, 24029, 24169, 24697, 24781, 25361, 26573, 27221, 27349, 28901, 29317, 31897

Offset

1,1

Links

Table of n, a(n) for n=1..37.

Eric Weisstein's World of Mathematics, Class Number

Index entries for sequences related to quadratic fields

Mathematica

Select[Range[31897], NumberFieldDiscriminant@Sqrt[#] == # && NumberFieldClassNumber@Sqrt[#] == 9 &]

Crossrefs

Cf. A003656, A094619, A094612-A094614, A218156-A218158, A218160.

Sequence in context: A122384 A218041 A061779 * A325087 A261404 A023307

Adjacent sequences: A218156 A218157 A218158 * A218160 A218161 A218162

Keyword

nonn

Author

Arkadiusz Wesolowski, Oct 22 2012

Status

approved