perplexus.info :: Numbers : Infinitely Summed NOD Function

Infinitely Summed NOD Function (Posted on 2024-08-26)

D(n) denotes the number of digits in the positive integer N.

Evaluate:

 ∞
 Σ {(D(n))!}^-1
n=1

No Solution Yet Submitted by K Sengupta

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