Euler pseudoprimes to base 7: composite integers such that abs(7^((n - 1)/2)) == 1 mod n.

Terms

a(0) =25a(1) =325a(2) =703a(3) =817a(4) =1825a(5) =2101a(6) =2353a(7) =2465a(8) =3277a(9) =4525a(10) =6697a(11) =8321a(12) =10225a(13) =11041a(14) =11521a(15) =12025a(16) =13665a(17) =14089a(18) =19345a(19) =20197a(20) =20417a(21) =20425a(22) =25829a(23) =29857a(24) =29891a(25) =35425a(26) =38081a(27) =39331a(28) =46657a(29) =49241