-13860

Appears in sequences

• Expansion of Product_{k>=1} (1 - x^k)^15.at n=20A010822
• Expansion of e.g.f.: sec(cosh(x)*log(x+1))=1+1/2!*x^2-3/3!*x^3+28/4!*x^4-160/5!*x^5...at n=7A012762
• Expansion of 1/(1 + 2*x - x^2).at n=11A077985
• Coefficients of polynomial in x multiplying sinh(x) in the modified spherical Bessel function of the first kind i_n(x).at n=43A094674
• Irregular triangle T(n,k) of nonzero coefficients of the modified Hermite polynomials (n >= 0 and 0 <= k <= floor(n/2)).at n=45A096713
• Matrix inverse of triangle A001497 of Bessel polynomials, read by rows; essentially the same as triangle A096713 of modified Hermite polynomials.at n=74A104556
• (-1)^(n+1)*n*A174276(n).at n=6A174356
• Coefficient array of orthogonal polynomials whose moment sequence is the double factorial numbers A001147.at n=24A176231
• Expansion of 2+(1-2*x)/(-1+2*x+x^2).at n=13A176981
• a(n) = -2*a(n-1) + a(n-2) for n > 2, with a(0) = a(1) = 1, a(2) = 0.at n=14A215936
• List of triples (r,s,t): the matrix M = [[1,4,4][1,3,2][1,2,1]] is raised to successive negative powers, then (r,s,t) are the square roots of M[3,1], M[1,1], M[1,3] respectively.at n=35A249577
• Irregular triangle read by rows: universal linear relationships among polynomial means for even degrees.at n=25A293107
• Triangle, read by rows, of Lambert's denominator polynomials related to convergents of tan(x).at n=51A334823