-1554
domain: Z
Appears in sequences
- Expansion of e.g.f.: log(sec(x)-log(x+1))=-1*x+1/2*x^2+1/3*x^3+3/8*x^4+7/120*x^5-1/240*x^6-593/5040*x^7-37/960*x^8+...at n=8A013500
- Expansion of (1-x-x^N)/((1-x)(1-x^2)(1-x^3)...(1-x^N)) for N = 5.at n=45A060024
- Expansion of c(q) * c(q^6) / c(q^2)^2 in powers of q where c() is a cubic AGM theta function.at n=34A122830
- Expansion of c(q^3) / (c(q^3) + c(q^6)) where c() is a cubic AGM function.at n=35A145977
- Expansion of phi(-q) / phi(q^4) in powers of q where phi() is a Ramanujan theta function.at n=49A208604
- Expansion of f(x, x^5) * f(-x^6) / f(x)^2 in powers of x where f() is a Ramanujan theta function.at n=17A254346
- Dirichlet inverse of A341528, where A341528(n) = n * sigma(A003961(n)), and A003961 is fully multiplicative with a(prime(i)) = prime(i+1).at n=36A378228