Strong pseudoprimes to base 41.

Terms

a(0) =21a(1) =231a(2) =671a(3) =703a(4) =841a(5) =1281a(6) =1387a(7) =1417a(8) =2701a(9) =3829a(10) =8321a(11) =8911a(12) =10933a(13) =13019a(14) =14091a(15) =20591a(16) =21667a(17) =25909a(18) =43213a(19) =43273a(20) =45221a(21) =45449a(22) =47197a(23) =48133a(24) =51319a(25) =60551a(26) =74089a(27) =76861a(28) =79381a(29) =80137