296327464

Appears in sequences

• Generalized tangent numbers d_(n,4).at n=6A000518
• Generalized tangent number d(7,n).at n=3A064072
• Generalized Euler numbers, a(n) = n!*[x^n](sec(7*x)*(-sin(2*x) + sin(4*x) + sin(6*x) + cos(x) + cos(3*x) - cos(5*x))).at n=7A349266