83860545domain: NAppears in sequencesExpansion of (sin x + cos x)/cos 4x.at n=8A000813Expansion of cos x / cos 4x.at n=4A001728Numerator of Euler(n, 3/8).at n=8A156205E.g.f. (sin(3x) + cos x) / cos(4x).at n=8A225109