Stamp folding $s(5)$

One way to fold a strip of 5 stamps

The number of distinct ways to fold a strip of $5$ labeled stamps.

Value: $50$

Updates from the literature

Lower bound: $50$
Reference unknown
[via Number of ways of folding a strip of n labeled stamps. - OEIS]
Upper bound: $50$
Reference unknown
[via Number of ways of folding a strip of n labeled stamps. - OEIS]