Strong pseudoprimes to base 2.

Terms

a(0) =2047a(1) =3277a(2) =4033a(3) =4681a(4) =8321a(5) =15841a(6) =29341a(7) =42799a(8) =49141a(9) =52633a(10) =65281a(11) =74665a(12) =80581a(13) =85489a(14) =88357a(15) =90751a(16) =104653a(17) =130561a(18) =196093a(19) =220729a(20) =233017a(21) =252601a(22) =253241a(23) =256999a(24) =271951a(25) =280601a(26) =314821a(27) =357761a(28) =390937a(29) =458989