Pseudoprimes to base 53.

Terms

a(0) =4a(1) =9a(2) =26a(3) =27a(4) =28a(5) =39a(6) =45a(7) =52a(8) =65a(9) =91a(10) =117a(11) =153a(12) =286a(13) =351a(14) =364a(15) =561a(16) =585a(17) =703a(18) =946a(19) =1036a(20) =1105a(21) =1405a(22) =1441a(23) =1541a(24) =1636a(25) =1729a(26) =2209a(27) =2465a(28) =2529a(29) =2821