Numbers k such that (10^k - 1)/3 + 4*10^floor(k/2) is a palindromic wing prime (a.k.a. near-repdigit palindromic prime).
A077790
Numbers k such that (10^k - 1)/3 + 4*10^floor(k/2) is a palindromic wing prime (a.k.a. near-repdigit palindromic prime).
Terms
- a(0) =3a(1) =7a(2) =15a(3) =23a(4) =27a(5) =35a(6) =59a(7) =63a(8) =67a(9) =155a(10) =1867a(11) =3111a(12) =23517a(13) =235415
External references
- oeis: A077790