Numbers that are the concatenation of two palindromes and that have exactly two palindromic factors, all with the same number of decimal digits.

A355148

Numbers that are the concatenation of two palindromes and that have exactly two palindromic factors, all with the same number of decimal digits.

Terms

    a(0) =12a(1) =14a(2) =15a(3) =16a(4) =18a(5) =21a(6) =24a(7) =25a(8) =27a(9) =28a(10) =32a(11) =35a(12) =36a(13) =42a(14) =45a(15) =48a(16) =49a(17) =54a(18) =56a(19) =63a(20) =64a(21) =72a(22) =81a(23) =3388a(24) =7744a(25) =101787a(26) =101808a(27) =111888a(28) =151848a(29) =212565

External references