a(n) is the greatest prime > a(n-1) obtained by inserting a single digit anywhere in its string of digits (including at the beginning or end), starting with a(1) = 7.
A389727
a(n) is the greatest prime > a(n-1) obtained by inserting a single digit anywhere in its string of digits (including at the beginning or end), starting with a(1) = 7.
Terms
- a(0) =7a(1) =97a(2) =997a(3) =9973a(4) =99793a(5) =997973a(6) =9987973a(7) =99987973a(8) =999879773a(9) =9998797073a(10) =99987970783a(11) =999879970783
External references
- oeis: A389727