Lesser of emirps (pairs) with only prime digits (A128388).

Terms

a(0) =37a(1) =337a(2) =3257a(3) =3373a(4) =3527a(5) =7577a(6) =32233a(7) =32257a(8) =32353a(9) =32377a(10) =32537a(11) =35227a(12) =35257a(13) =35327a(14) =35537a(15) =72337a(16) =72577a(17) =73277a(18) =75577a(19) =322573a(20) =323333a(21) =327553a(22) =332573a(23) =333227a(24) =333253a(25) =333337a(26) =337537a(27) =353737a(28) =353777a(29) =355573