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A225061 Record class numbers of discriminants of imaginary quadratic fields: h(-A225060(n)). 2
1, 2, 3, 4, 5, 7, 8, 10, 11, 13, 14, 15, 19, 21, 25, 26, 30, 31, 32, 33, 36, 41, 45, 49, 51, 52, 56, 60, 63, 64, 68, 73, 76, 81, 82, 83, 84, 85, 88, 91, 92, 93, 97, 99, 109, 114, 117, 120, 121, 126, 134, 135, 138, 139, 153, 156, 161, 165, 174, 178, 181, 185, 195, 202, 205 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

REFERENCES

H. Heilbronn, On the class number in imaginary quadratic fields, Quart. J. Math. Oxford 5 (1934), pp. 293-301.

LINKS

Charles R Greathouse IV, Table of n, a(n) for n = 1..675

PROG

(PARI) r=0; forstep(n=3, 1e6, [1, 3], t=qfbclassno(-n); if(t>r, print1(r=t", ")))

CROSSREFS

Cf. A014600, A225060, A038552.

Sequence in context: A228803 A037014 A261131 * A133223 A065003 A189729

Adjacent sequences:  A225058 A225059 A225060 * A225062 A225063 A225064

KEYWORD

nonn

AUTHOR

Charles R Greathouse IV, Apr 26 2013

STATUS

approved

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Last modified June 20 10:03 EDT 2021. Contains 345162 sequences. (Running on oeis4.)