Sloane's Gap: why OEIS integers cluster

Numberphile · Explainer · YouTube title: Sloane's Gap - Numberphile

Why it's here

HN recommends it as a concise, quick explanation of the OEIS pattern when threads touch the integer sequence encyclopedia.

What it covers

A Numberphile video with Dr James Grime on Sloane's Gap, the observation that integers in the OEIS are not evenly represented and some numbers are underrepresented. It explains the clusters of 'interesting' numbers.