427608

Appears in sequences

• Number of palindromes of length n and containing the digit 1 (or any other fixed nonzero digit).at n=10A050686
• Number of palindromes of length n and containing the digit 1 (or any other fixed nonzero digit).at n=11A050686
• Number of "9ish numbers" with n digits.at n=5A088924
• Association types for monomials with n arguments in an algebra with two binary operations, one commutative, one noncommutative.at n=9A276277