Number of nonzero palindromes < 10^n and containing at least one digit '0'.

A050685

Number of nonzero palindromes < 10^n and containing at least one digit '0'.

Terms

    a(0) =0a(1) =0a(2) =9a(3) =18a(4) =189a(5) =360a(6) =2799a(7) =5238a(8) =36189a(9) =67140a(10) =435699a(11) =804258a(12) =5021289a(13) =9238320a(14) =56191599a(15) =103144878a(16) =615724389a(17) =1128303900a(18) =6641519499a(19) =12154735098a(20) =70773675489a(21) =129392615880a(22) =746963079399

External references