Numbers n such that n and prime(n) contain prime digits only.

Terms

a(0) =2a(1) =3a(2) =55a(3) =332a(4) =352a(5) =375a(6) =733a(7) =3573a(8) =3575a(9) =7235a(10) =22222a(11) =22223a(12) =22322a(13) =252323a(14) =252335a(15) =253777a(16) =255225a(17) =372755a(18) =372772a(19) =522532a(20) =523255a(21) =525737a(22) =2275325a(23) =2275327a(24) =2275337a(25) =2277333a(26) =2277337a(27) =3325772a(28) =27727257a(29) =27727277