Smallest integer x satisfying the Pell equation x^2-k*y^2=-1 for the values of k given in A031396.

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =18a(5) =4a(6) =5a(7) =70a(8) =6a(9) =32a(10) =7a(11) =182a(12) =99a(13) =29718a(14) =8a(15) =1068a(16) =43a(17) =9a(18) =378a(19) =500a(20) =5604a(21) =10a(22) =4005a(23) =8890182a(24) =776a(25) =11a(26) =682a(27) =57a(28) =1744a(29) =12