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) = 1.
A389721
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) = 1.
Terms
- a(0) =1a(1) =71a(2) =971a(3) =9871a(4) =99871a(5) =998717a(6) =9987617a(7) =99897617a(8) =998976197a(9) =9989796197a(10) =99897963197a(11) =998979693197
External references
- oeis: A389721