-8892domain: ZAppears in sequencesMatrix inverse of triangle A121336, where A121336(n,k) = C( n*(n+1)/2 + n-k + 2, n-k) for n>=k>=0.at n=39A121441Coefficients in the expansion of 1/([r] + [2r]x + [3r]x^2 + ...); [ ] = floor, r = Pi/2.at n=13A279592Expansion of (eta(q)*eta(q^3))/eta(q^2)^2 in powers of q.at n=43A293306