Euler pseudoprimes to base 6: composite integers such that abs(6^((n - 1)/2)) == 1 mod n.

Terms

a(0) =185a(1) =217a(2) =301a(3) =481a(4) =1111a(5) =1261a(6) =1333a(7) =1729a(8) =2465a(9) =2701a(10) =3421a(11) =3565a(12) =3589a(13) =3913a(14) =5713a(15) =6533a(16) =8365a(17) =10585a(18) =11041a(19) =11137a(20) =12209a(21) =14701a(22) =15841a(23) =17329a(24) =18361a(25) =20017a(26) =21049a(27) =22049a(28) =29341a(29) =31021