-4704

Appears in sequences

• Percolation series for hexagonal lattice.at n=17A006803
• Matrix inverse of triangle A055140.at n=30A055141
• Expansion of (1-x)/(1+2*x-2*x^2-2*x^3).at n=9A078053
• Expansion of q^(-1/4) * (eta(q) * eta(q^4)^2 / eta(q^2)^3)^2 in powers of q.at n=17A079006
• Coefficients for obtaining A120057 from Bell numbers.at n=50A120058
• Triangle read by rows: T(n, k) is the coefficient of x^k in the polynomial 1 - T_n(x)^2, where T_n(x) is the n-th Chebyshev polynomial of the first kind.at n=55A123583
• Triangle read by rows: T(n, k) is the coefficient of x^k in the polynomial 1 - ChT(n, x^(1/2))^2, where ChT(n, x) is the n-th Chebyshev polynomial of the first kind, evaluated at x (0 <= k <= n).at n=31A123588
• a(n) = C(n+5, 5)*(n+3)*(-1)^(n+1)*16/3.at n=4A138331
• Triangle T(n, k) = H(n, k+1) - 2*H(n, k) - H(n, k-1), where H(n, k) = A060821(n+3, k), read by rows.at n=9A140873
• Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of max{3i+j-3,i+3j-3} (A204008).at n=23A204011
• Expansion of psi(-x) * psi(-x^3) / (phi(x^2) * phi(x^6)) in powers of x where phi(), psi() are Ramanujan theta functions.at n=34A281731
• Irregular triangle read by rows: universal linear relationships among polynomial means.at n=58A287610
• Triangle read by rows. Row n gives the numerators of the coefficients of the Bernoulli polynomials of the second kind (in rising powers).at n=39A290317
• Irregular triangle read by rows: universal linear relationships among polynomial means for even degrees.at n=20A293107