Strong pseudoprimes to base 6.

Terms

a(0) =217a(1) =481a(2) =1111a(3) =1261a(4) =2701a(5) =3589a(6) =5713a(7) =6533a(8) =11041a(9) =14701a(10) =20017a(11) =29341a(12) =34441a(13) =39493a(14) =43621a(15) =46657a(16) =46873a(17) =49141a(18) =49661a(19) =58969a(20) =74023a(21) =74563a(22) =76921a(23) =83333a(24) =87061a(25) =92053a(26) =94657a(27) =94697a(28) =97751a(29) =97921