Numbers k such that (10^k-1)/9 + 4*10^floor(k/2) is a palindromic wing prime (a.k.a. near-repdigit palindromic prime).
A077783
Numbers k such that (10^k-1)/9 + 4*10^floor(k/2) is a palindromic wing prime (a.k.a. near-repdigit palindromic prime).
Terms
- a(0) =3a(1) =15a(2) =91a(3) =231a(4) =1363a(5) =2497a(6) =4963a(7) =5379a(8) =12397a(9) =26395a(10) =120253a(11) =200145
External references
- oeis: A077783