@misc{oeis_coefficients_u_m_l_k_defined_by_polynomial_identity_3,
    title = {{The coefficients U(m, l, k), m = 3 defined by the polynomial identity}},
    author = {Kolosov, Petro},
    journal = {{The On-Line Encyclopedia of Integer Sequences}},
    number = {A316387},
    year = {2018},
    note = {\url{https://oeis.org/A316387}}
}