a(n) is the least x such that x^2 mod prime(i), i=1..n, are all distinct.

Terms

a(0) =1a(1) =2a(2) =2a(3) =3a(4) =3a(5) =172a(6) =213a(7) =213a(8) =333a(9) =333a(10) =1228a(11) =1438a(12) =2152a(13) =3832a(14) =3832a(15) =3832a(16) =5792a(17) =22732a(18) =22732a(19) =37342a(20) =37342a(21) =37342a(22) =37342a(23) =37342a(24) =545408a(25) =629247a(26) =629247a(27) =629247a(28) =629247a(29) =629247