User blog comment:Edwin Shade/Understanding The Infinite/@comment-25601061-20171109021425/@comment-32876686-20171109030411

No, I believe it is $$\omega^2 +3$$, as if you plug in successive values for $$\delta$$ in $$(\omega+3)\cdot\delta$$ you'll find the sequence tending towards $$\omega\cdot\omega +3$$ or $$\omega^2 +3$$.