Strong pseudoprimes (base 2) that become prime when two is subtracted.

Terms

a(0) =4681a(1) =29341a(2) =42799a(3) =49141a(4) =52633a(5) =85489a(6) =90751a(7) =104653a(8) =458989a(9) =1004653a(10) =1082401a(11) =1251949a(12) =1302451a(13) =1907851a(14) =2510569a(15) =2811271a(16) =3090091a(17) =3539101a(18) =5044033a(19) =5049001a(20) =5489641a(21) =5590621a(22) =7177105a(23) =9069229a(24) =9073513a(25) =9567673a(26) =9995671a(27) =10323769a(28) =11473885a(29) =12263131