Euler pseudoprimes to base 8: composite integers such that abs(8^((n - 1)/2)) == 1 mod n.

Terms

a(0) =9a(1) =21a(2) =65a(3) =105a(4) =133a(5) =273a(6) =341a(7) =481a(8) =511a(9) =561a(10) =585a(11) =1001a(12) =1105a(13) =1281a(14) =1417a(15) =1541a(16) =1661a(17) =1729a(18) =1905a(19) =2047a(20) =2465a(21) =2501a(22) =3201a(23) =3277a(24) =3641a(25) =4033a(26) =4097a(27) =4641a(28) =4681a(29) =4921