Strong pseudoprimes to base 83.

Terms

a(0) =21a(1) =65a(2) =231a(3) =265a(4) =689a(5) =703a(6) =1241a(7) =3445a(8) =4411a(9) =6973a(10) =8421a(11) =12871a(12) =15883a(13) =18721a(14) =20191a(15) =22261a(16) =24727a(17) =31417a(18) =42127a(19) =44801a(20) =60551a(21) =69841a(22) =79003a(23) =82513a(24) =83333a(25) =85609a(26) =92631a(27) =98671a(28) =113401a(29) =116941