A081364 Smallest d such that real quadratic field with discriminant d has class number n.

5, 40, 229, 145, 401, 697, 577, 904, 1129, 3129, 1297, 2920, 8101, 6097, 11321, 2305, 11257, 7465, 15409, 3601, 7057, 19048, 23593, 15529, 27689, 13321, 8761, 21505, 49281, 11665, 97753, 29665, 61889, 44065, 25601, 35113, 24337, 54569

Offset: 1

Author

Dean Hickerson, Mar 19 2003

Keywords

• nonn

Links

• Victor Y. Wang, On Hilbert 2-class fields and 2-towers of imaginary quadratic number fields, arXiv preprint arXiv:1508.06552, 2015
• Eric Weisstein's World of Mathematics, Class Number

Crossrefs

Cf. A081363.

Extensions

a(31) to a(38) from Eric W. Weisstein, May 19 2004