A225061 Record class numbers of discriminants of imaginary quadratic fields: h(-A225060(n)).

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

Offset: 1

Author

Charles R Greathouse IV, Apr 26 2013

Keywords

• nonn

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

Crossrefs

Cf. A014600, A225060, A038552.

Programs

PARI

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