-7280

Appears in sequences

• Expansion of Product_{k>=1} (1 - x^k)^16.at n=9A000739
• Expansion of e.g.f. sech(tan(x)*arcsin(x)) (only even powers).at n=4A012386
• Expansion of e.g.f. sech(arctan(x)*sin(x)) (only even powers).at n=4A012431
• cos(arctan(x)*tan(x))=1-12/4!*x^4-7280/8!*x^8+241920/10!*x^10...at n=4A012448
• Sum of the coefficients of the Schur function expansion of the square of the Vandermonde determinant in n variables.at n=4A072888
• Expansion of g.f. (1+x)^2*(x^2-6*x+1)/(x-1)^4.at n=14A136264
• Triangle read by rows. Coefficients of the polynomials P(n, x) = 2^(n-2)*(3*n-1)* hypergeometric([-3*n, 1 - n, -n + 4/3], [-n, -n + 1/3], x). T(n, k) = [x^k] P(n, x).at n=13A358091
• Consider primitive pairs of integers (b, c) with b < 0 such that x^5 + b*x + c = 0 is irreducible and solvable by radicals: sequence gives values of b.at n=12A371557