196584domain: NAppears in sequencesa(1) = 5, a(n) = sigma(a(n-1)).at n=12A051572a(n) = sigma^n(n), where sigma^n denotes functional iteration.at n=10A090896a(n) = 48*2^n - 24.at n=12A305065Inverse Euler transform of q*(j-720) where j is j-function (A000521).at n=1A305757