title: RegEx to find numbers sequence in string separated by space with predefined maximum length
body: <p>Sorry for the confusing title, I'll try to explain this with example. Currently we have this expression to find number sequence in a string<br>
  <code>\b((\d[ ]{0,1}){13,19})\b</code><br>
  Now I'd like to modify it so it fulfills these rule<br>
   - The length should be between 13 to 19 characters, excluding the whitespaces<br>
   - Each number cluster must have minimum 3 digits </p>
  
  <p>The expression should mark these as matched:</p>
  
  <blockquote>
    <p>1234567890123<br>
    1234 5678 9012 345  </p>
  </blockquote>
  
  <p>Not match:</p>
  
  <blockquote>
    <p>123456789012 3<br>
    123 12 123 1 23134  </p>
  </blockquote>
  
  <p>Current expression that I have will mark all of them as match.<br>
  <a href="https://regex101.com/r/NOtQIi/1" rel="nofollow noreferrer">Example</a></p>