Stamp folding $s(21)$
The number of distinct ways to fold a strip of $21$ labeled stamps.
Value: $6927964218$ (6,927,964,218)
Updates
-
Lower bound: $6927964218$
(6,927,964,218)
Reference unknown
[via Number of ways of folding a strip of n labeled stamps. - OEIS] -
Upper bound: $6927964218$
(6,927,964,218)
Reference unknown
[via Number of ways of folding a strip of n labeled stamps. - OEIS]