Emirps using only and all of the prime digits 2,3,5,7.

Terms

a(0) =3257a(1) =3527a(2) =7253a(3) =7523a(4) =32257a(5) =32537a(6) =35227a(7) =35257a(8) =35327a(9) =72253a(10) =72353a(11) =73523a(12) =75223a(13) =75253a(14) =322573a(15) =327553a(16) =332573a(17) =355723a(18) =375223a(19) =375233a(20) =725357a(21) =753527a(22) =3223357a(23) =3223537a(24) =3225737a(25) =3235577a(26) =3235777a(27) =3237527a(28) =3252377a(29) =3253753