76105domain: NAppears in sequencesLeast m such that Sigma-Composite-Harmonic series Sum_{k=1..m} 1/A000203(A002808(k)) >= n.at n=4A074469a(n) = 3 + floor((2 + Sum_{j=1..n-1} a(j))/3).at n=35A120150Sums of positive coefficients in generalized Chebyshev polynomials of the first kind, for a family of 4 data.at n=7A301417