Denominators of coefficients in expansion of 3/(1 + 2 cos(sqrt(x))).

A279122

Denominators of coefficients in expansion of 3/(1 + 2 cos(sqrt(x))).

Terms

    a(0) =1a(1) =3a(2) =12a(3) =360a(4) =181440a(5) =1814400a(6) =34214400a(7) =130767436800

External references