I cannot create an article about "30 30 18 18" because this sequence of numbers lacks inherent meaning or context. To write a meaningful and informative article, I need a topic or subject matter. "30 30 18 18" could represent many things depending on context (e.g., dimensions, dates, codes, etc.), but without that context, any article would be pure speculation and therefore unhelpful.
Please provide me with a topic or subject that uses those numbers in a meaningful way, or a different topic altogether, and I will be happy to write a comprehensive blog post for you.