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A218159 Fundamental discriminants of real quadratic number fields with class number 9. 2
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 (list; graph; refs; listen; history; text; internal format)
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

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Last modified January 23 03:15 EST 2022. Contains 350504 sequences. (Running on oeis4.)