Strong pseudoprimes k to base 2 such that either k-2 or k+2 is prime.

Terms

a(0) =4681a(1) =29341a(2) =42799a(3) =49141a(4) =52633a(5) =85489a(6) =90751a(7) =104653a(8) =253241a(9) =280601a(10) =458989a(11) =580337a(12) =1004653a(13) =1082401a(14) =1207361a(15) =1251949a(16) =1302451a(17) =1678541a(18) =1907851a(19) =1909001a(20) =2419385a(21) =2510569a(22) =2811271a(23) =3090091a(24) =3539101a(25) =5044033a(26) =5049001a(27) =5173601a(28) =5489641a(29) =5590621