239360

Appears in sequences

• Coefficients of Chebyshev T polynomials: a(n) = A053120(n+8, n), n >= 0.at n=9A006974
• Numbers that can be written as k/d(k) in four or more ways, where d(k) = number of divisors of k.at n=23A051346
• Triangle of coefficients of Chebyshev polynomials T_{2n+1} (x).at n=40A084930
• Coefficient table for Chebyshev's U(2*n,x) polynomials in decreasing powers of (1-x^2).at n=40A127675
• a(n) = A134955(n) - A134955(n-1). Number of hyperforests spanning n unlabeled nodes without isolated vertices.at n=14A144959
• Coefficient array for integer polynomial version of minimal polynomials of sin(2*Pi/n). Rising powers of x.at n=94A181871
• Numbers n such that n = k/d(k) has exactly 4 solutions, where d(k) = number of divisors of k.at n=21A217125
• Expansion of x^5*(4 - 5*x)/(1 - 2*x)^4.at n=14A268598
• Triangle read by rows: T(n,k) is the number of bargraphs of semiperimeter n having k L-shaped corners (n>=2, k>=0).at n=51A273717
• Starts of runs of 3 consecutive lazy-Pell-Niven numbers (A352342).at n=17A352344