Q(sqrt(n)) has class number 2.

Terms

a(0) =10a(1) =15a(2) =26a(3) =30a(4) =34a(5) =35a(6) =39a(7) =42a(8) =51a(9) =55a(10) =58a(11) =65a(12) =66a(13) =70a(14) =74a(15) =78a(16) =85a(17) =87a(18) =91a(19) =95a(20) =102a(21) =105a(22) =106a(23) =110a(24) =111a(25) =114a(26) =115a(27) =119a(28) =122a(29) =123