Для заданої послiдовностi комплексних чисел $Λ$ побудовано рiвняння $f^{(n)} + Af^m = 0,   m,n ∈ \mathbb{N} (f'' + Af = 0),$ де $A$ - цiла (мероморфна в $\mathbb{C}$  ) функцiя, якi мають мероморфнi розв'язки з полюсами в точках $Λ$. Отриманий результат для рiвняння $f'' + Af = 0$  узагальнено для випадку двох послiдовностей.

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