-1692

Appears in sequences

• McKay-Thompson series of class 12I for the Monster group.at n=58A058487
• McKay-Thompson series of class 24c for the Monster group.at n=58A062243
• a(n) = Sum_{k<=n} A007955(k) * A008683(n-k+1) = Sum_{k<=n} A007955(k) * mu(n-k+1), where A007955(m) = product of divisors of m.at n=12A174942
• G.f. (1-x) * Sum_{n>=0} x^n * (1 + x^n)^n / (1 + x^(n+1))^(n+1).at n=39A354247