Map folding ($2 \times 12)$
The number of distinct ways to fold a $2 \times 12$ rectangle into a unit square.
Value: $266680992$ (266,680,992)
Updates
-
Lower bound: $266680992$
(266,680,992)
Reference unknown
[via Number of ways of folding a 2 X n strip of stamps. - OEIS] -
Upper bound: $266680992$
(266,680,992)
Reference unknown
[via Number of ways of folding a 2 X n strip of stamps. - OEIS]