Numbers k such that 7*(10^k - 1)/9 - 3*10^floor(k/2) is a palindromic wing prime (also known as near-repdigit palindromic prime).
A077781
Numbers k such that 7*(10^k - 1)/9 - 3*10^floor(k/2) is a palindromic wing prime (also known as near-repdigit palindromic prime).
Terms
- a(0) =5a(1) =7a(2) =13a(3) =47a(4) =73a(5) =139a(6) =1123a(7) =1447a(8) =6877a(9) =8209a(10) =18041a(11) =27955a(12) =39311a(13) =64801
External references
- oeis: A077781