Pseudoprimes to base 49.

Terms

a(0) =4a(1) =6a(2) =8a(3) =12a(4) =15a(5) =16a(6) =24a(7) =25a(8) =48a(9) =66a(10) =75a(11) =76a(12) =172a(13) =176a(14) =232a(15) =247a(16) =276a(17) =304a(18) =325a(19) =425a(20) =435a(21) =475a(22) =496a(23) =559a(24) =561a(25) =688a(26) =703a(27) =817a(28) =904a(29) =946