Denominators of coefficients in expansion of 1/(2 + cos(sqrt(x))).
A279233
Denominators of coefficients in expansion of 1/(2 + cos(sqrt(x))).
Terms
- a(0) =3a(1) =18a(2) =216a(3) =6480a(4) =1088640a(5) =3628800a(6) =4311014400
External references
- oeis: A279233