Miskolc Mathematical Notes, cilt.23, sa.2, ss.773-785, 2022 (SCI-Expanded)
© 2022 Miskolc University PressIn this paper, we give some identities involving derangement numbers. In addition, we derive nonlinear differential equation from the generating function of r-derangement numbers and obtain some identities including generalized harmonic numbers and derangement numbers by using this differential equation. For example, for any positive integers N, n and r, (Formula Presented)