72327

Appears in sequences

• Diagonal of A083464.at n=28A083465
• Palindromic composite numbers starting with a digit 7.at n=34A222728
• Number of partitions of n where the difference between consecutive parts is at most 9.at n=45A238869
• G.f. satisfies A(x) = A(x^2)/M(x), where M(x) = Sum_{n>=1} mu(n)*x^n and mu(n) = A008683(n), the Moebius function of n.at n=20A378260