ધારો કે $\sum_{n=0}^{\infty} \frac{n^3((2n)!) + (2n-1)(n!)}{(n!)((2n)!)} = ae + \frac{b}{e} + c$,જ્યાં $a, b, c \in \mathbb{Z}$ અને $e = \sum_{n=0}^{\infty} \frac{1}{n!}$. તો $a^2 - b + c$ ની કિંમત $................$ છે.

  • A
    $25$
  • B
    $24$
  • C
    $23$
  • D
    $26$

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