85917696

Appears in sequences

• Negated coefficients of Chebyshev T polynomials: [x^n](-T(n+6, x)), n >= 0.at n=17A001794
• Maximal coefficient (in absolute value) of the minimal polynomial P with integer coefficients such that P(sin(Pi/n)) = 0.at n=22A081797
• Number of unordered pairs of disjoint self-avoiding paths with nodes that cover all vertices of a convex n-gon; one node paths are not allowed.at n=18A308914