Smallest Wieferich prime (> sqrt(n)) in base n.

Terms

a(0) =2a(1) =1093a(2) =11a(3) =1093a(4) =20771a(5) =66161a(6) =5a(7) =3a(8) =11a(9) =487a(10) =71a(11) =2693a(12) =863a(13) =29a(14) =29131a(15) =1093a(16) =46021a(17) =5a(18) =7a(19) =281