Numbers k such that (10^k - 1) - 7*10^floor(k/2) is a palindromic wing prime (a.k.a. near-repdigit palindromic prime).
A077778
Numbers k such that (10^k - 1) - 7*10^floor(k/2) is a palindromic wing prime (a.k.a. near-repdigit palindromic prime).
Terms
- a(0) =3a(1) =17a(2) =19a(3) =705a(4) =1061a(5) =1395a(6) =2631a(7) =3837a(8) =5749a(9) =11753a(10) =13537a(11) =125877a(12) =269479
External references
- oeis: A077778