A386077 Primes having only {0, 5, 6, 7} as digits.
5, 7, 67, 557, 577, 607, 677, 757, 5077, 5507, 5557, 5657, 6007, 6067, 6577, 6607, 7057, 7507, 7577, 7607, 7757, 50077, 50707, 50767, 50777, 55057, 55667, 56767, 57077, 57557, 57667, 60077, 60607, 60757, 65557, 65657, 65677, 65707, 65777, 66067, 67057, 67567
Offset: 1