33261

Appears in sequences

• Expansion of 1/((1-2x)(1-3x)(1-5x)(1-10x)).at n=4A025934
• Positions of incrementally largest terms in the continued fraction for Euler's constant gamma (A002852).at n=14A033092
• Partial sums of Sum_{k=1..n} n/gcd(n,k), or partial sums of Sum_{d|n} d*phi(d) (see A057660).at n=50A174405
• Number of permutations of 4 copies of 1..n avoiding adjacent step pattern up, down, up, up, down, up.at n=2A177669
• E.g.f. satisfies A(x) = exp(x/(1 - A(x))^2) - 1.at n=5A371371
• Integers k such that 511*2^k - 1 is prime.at n=37A387925
• Lower (1/2)-midsequence of (2^n) and F(n), where F = A000045 (Fibonacci numbers); see Comments.at n=16A390559