Largest even 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.

A357573

Largest even 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) =232a(1) =1012a(2) =1588a(3) =3448a(4) =5272a(5) =8248a(6) =9172a(7) =14008a(8) =21652a(9) =21508a(10) =26548a(11) =32008a(12) =45208a(13) =53188a(14) =57688a(15) =65668a(16) =73588a(17) =85012a(18) =121972a(19) =120712a(20) =117748a(21) =137272a(22) =189352a(23) =162628a(24) =174868a(25) =201268a(26) =194968a(27) =249208a(28) =188248a(29) =332872

External references