Safe primes that are also highly cototient numbers.

Terms

a(0) =23a(1) =47a(2) =59a(3) =83a(4) =167a(5) =839a(6) =2099a(7) =5879a(8) =6719a(9) =23099a(10) =27299a(11) =180179a(12) =414959a(13) =420419a(14) =628319a(15) =660659a(16) =840839a(17) =1141139a(18) =1681679a(19) =2042039a(20) =2277659a(21) =4084079a(22) =5525519a(23) =5705699