A133554 Lesser of emirps (pairs) with only prime digits (A128388).

37, 337, 3257, 3373, 3527, 7577, 32233, 32257, 32353, 32377, 32537, 35227, 35257, 35327, 35537, 72337, 72577, 73277, 75577, 322573, 323333, 327553, 332573, 333227, 333253, 333337, 337537, 353737, 353777, 355573, 357737, 372277, 372377, 373357, 373777, 377737, 723727, 725357, 757577