Smallest even fundamental discriminant k such that h(-k) = 2n, where h(D) is the class number of the quadratic field with discriminant D; or 0 if no such k exists.

A344072

Smallest even fundamental discriminant k such that h(-k) = 2n, where h(D) is the class number of the quadratic field with discriminant D; or 0 if no such k exists.

Terms

    a(0) =20a(1) =56a(2) =104a(3) =164a(4) =296a(5) =356a(6) =404a(7) =584a(8) =1172a(9) =776a(10) =1076a(11) =1316a(12) =1256a(13) =1364a(14) =1844a(15) =1784a(16) =2456a(17) =2504a(18) =4916a(19) =2756a(20) =3176a(21) =3416a(22) =3764a(23) =4424a(24) =4436a(25) =5924a(26) =6296a(27) =4616a(28) =5144a(29) =5444

External references