-15015

Appears in sequences

• Expansion of e.g.f. sin(tan(x)), zeros omitted.at n=4A003706
• E.g.f. exp(tanh(x)).at n=9A003723
• Expansion of c(x*y*(1-x)), c(x) the g.f. of A000108.at n=62A115179
• Triangular table of numerators of the coefficients of Laguerre-Sonin polynomials L(1/2,n,x).at n=29A131440
• 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 t_n(x), used to define continuous and n times differentiable sigmoidal transfer functions.at n=29A144815
• Composition of Catalan and Fibonacci numbers.at n=74A189675
• Coefficients of (x^(1/3)*d/dx)^n for positive integer n.at n=34A223533
• T(n,k) are the numerators of the coefficients of the Legendre polynomials of degree n, with increasing exponents, where T(n,k) is a triangle read by rows.at n=59A356205
• Irregular triangle T(n,k) read by rows of the reduced coefficients of Pi^(2*k) in the expansion of Sum_{k>=1} (1 / (4*k^2-1)^n).at n=26A382782