-2970
domain: Z
Appears in sequences
- tanh(sin(x)+log(x+1))=2*x-1/2!*x^2-15/3!*x^3+42/4!*x^4+397/5!*x^5...at n=6A012894
- Expansion of e.g.f. tanh(arcsinh(x) + log(x+1)).at n=6A013076
- Expansion of eta(q)/eta(q^5)^5 in powers of q.at n=36A109063
- Numerators of triangle T(n,k), n>=0, 0<=k<=n, read by rows: T(n,k) is the coefficient of x^(2k+1) in polynomial v_n(x), used to approximate x->sin(Pi*x)/Pi.at n=18A144859
- Hurwitz logarithm of triangular numbers [1,3,6,10,15,...].at n=6A302196
- Triangle read by rows: T(n, k) = (-1)^(k+1)*binomial(n,k)*binomial(n+k,k) (n >= k >= 0).at n=57A331430
- Fourier coefficients of the modular form (1/t_{3A}^2) * F_{3A}^12.at n=10A341558