First prime divisor of odd composite Mersenne prime reversals.
A134039
First prime divisor of odd composite Mersenne prime reversals.
Terms
- a(0) =7a(1) =13a(2) =5a(3) =47a(4) =683a(5) =5a(6) =20149a(7) =19a(8) =2399a(9) =15383a(10) =5a(11) =5a(12) =5
External references
- oeis: A134039