Strong pseudoprimes to base 80.

Terms

a(0) =9a(1) =27a(2) =49a(3) =81a(4) =169a(5) =301a(6) =481a(7) =2107a(8) =3439a(9) =5461a(10) =6253a(11) =6401a(12) =7107a(13) =8261a(14) =10349a(15) =16609a(16) =18361a(17) =23281a(18) =25351a(19) =29089a(20) =46531a(21) =49051a(22) =55231a(23) =58969a(24) =75851a(25) =79501a(26) =113401a(27) =115231a(28) =117569a(29) =119341