769980domain: NAppears in sequencesA level 11 weight 5 form.at n=29A065103a(n) = Sum_{ d >= 1, d divides n} (-1)^(n-d)*d^4.at n=29A279395a(n) = Sum_{d|n} (-1)^(n/d+1)*d^4.at n=29A284900a(n) = n*sigma_4(n).at n=15A386749