-1370

Appears in sequences

• E..g.f. exp(tanh(x)/exp(x)).at n=7A009276
• Dirichlet inverse of sigma_2 function (A001157).at n=36A053822
• Expansion of (chi(-q^3)^8 + 16*q^2/ chi(-q^3)^8)^(1/8) in powers of q where chi() is a Ramanujan theta function.at n=8A106204
• Triangle read by rows: T(n,k) = coefficient of x^k in the polynomial p[n,x] defined by p[0,x]=1, p[1,x]=1+x and p[n,x]=(1+x)(2-x)(3-x)...(n-x) for n >= 2 (0 <= k <= n).at n=32A123361
• Expansion of (1/3) * b(q) * b(q^2) * c(q)^2 / c(q^2) in powers of q where b(), c() are cubic AGM functions.at n=37A132000
• Coefficients of expansion of 1/xi_0(y) (see A195980 for definition).at n=11A195981
• Expansion of psi(-x)^6 in powers of x where psi() is a Ramanujan theta function.at n=27A213791
• Dirichlet g.f.: zeta(2*s) / (zeta(s) * zeta(s-2)).at n=36A328639
• Expansion of Sum_{k>0} x^(4*k)/(1+x^k)^5.at n=14A363618