Expansion of e.g.f. exp((cosh(x) - cos(x))/2) (even powers only).

A307979

Expansion of e.g.f. exp((cosh(x) - cos(x))/2) (even powers only).

Terms

    a(0) =1a(1) =1a(2) =3a(3) =16a(4) =133a(5) =1576a(6) =24783a(7) =495496a(8) =12245353a(9) =364768576a(10) =12838252443a(11) =526095538816

External references