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) = 4.
A389724
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) = 4.
Terms
- a(0) =4a(1) =47a(2) =947a(3) =9547a(4) =97547a(5) =997547a(6) =9978547a(7) =99785947a(8) =997895947a(9) =9978959747a(10) =99798959747a(11) =998798959747
External references
- oeis: A389724