Map folding ($7 \times 7)$
The number of distinct ways to fold a $7 \times 7$ rectangle into a unit square.
Value: $129950723279272$ (129,950,723,279,272)
Updates
-
Lower bound: $129950723279272$
(129,950,723,279,272)
Reference unknown
[via Number of ways of folding an n X n sheet of stamps. - OEIS] -
Upper bound: $129950723279272$
(129,950,723,279,272)
Reference unknown
[via Number of ways of folding an n X n sheet of stamps. - OEIS]