215 (number) - Wikipedia
https://en.wikipedia.org/wiki/215_(number)
Web215 is a vertically symmetric number on a calculator display (sequence A053701 in the OEIS). There are 215 sequences of four integers, counting re-arrangements as distinct, such that the sum of their reciprocals is 1. These are 24 arrangements of (2,3,7,42), (2,3,8,24), (2,3,9,18), (2,3,10,15), (2,4,5,20) and (2,4,6,12).
DA: 70 PA: 23 MOZ Rank: 50