Pseudoprimes whose prime factors do not divide any smaller pseudoprime.

Terms

a(0) =341a(1) =1387a(2) =2047a(3) =8321a(4) =13747a(5) =18721a(6) =19951a(7) =31621a(8) =60701a(9) =83333a(10) =88357a(11) =219781a(12) =275887a(13) =422659a(14) =435671a(15) =513629a(16) =514447a(17) =587861a(18) =604117a(19) =653333a(20) =680627a(21) =710533a(22) =722261a(23) =741751a(24) =769757a(25) =916327a(26) =1194649a(27) =1252697a(28) =1293337a(29) =1433407