Discriminants of real quadratic fields with 3-class tower group <81,7>.

Terms

a(0) =142097a(1) =173944a(2) =259653a(3) =283673a(4) =320785a(5) =321053a(6) =326945a(7) =335229a(8) =412277a(9) =424236a(10) =459964a(11) =471713a(12) =476152a(13) =527068a(14) =535441a(15) =551384a(16) =567473a(17) =621749a(18) =637820a(19) =681276a(20) =686977a(21) =729293a(22) =747496a(23) =750376a(24) =782737a(25) =784997a(26) =807937a(27) =893029a(28) =916181a(29) =942961