Consider all (2n+1)-digit palindromic primes of the form 10...0M0...01 (so that M is a palindrome with <= 2n-1 digits); a(n) = smallest such M.

A100026

Consider all (2n+1)-digit palindromic primes of the form 10...0M0...01 (so that M is a palindrome with <= 2n-1 digits); a(n) = smallest such M.

Terms

    a(0) =0a(1) =3a(2) =3a(3) =3a(4) =5a(5) =8a(6) =323a(7) =5a(8) =8a(9) =212a(10) =3a(11) =161a(12) =8a(13) =3a(14) =242a(15) =3a(16) =8a(17) =10901a(18) =737a(19) =161a(20) =242a(21) =333a(22) =282a(23) =6a(24) =252a(25) =474a(26) =5a(27) =12921a(28) =8a(29) =131

External references