E.g.f. 1/(cos(2*x) - sin(2*x)).

A079858

E.g.f. 1/(cos(2*x) - sin(2*x)).

Terms

    a(0) =1a(1) =2a(2) =12a(3) =88a(4) =912a(5) =11552a(6) =176832a(7) =3150208a(8) =64188672a(9) =1470996992a(10) =37459479552

External references