Question 1
According to the pattern, fill the blank: $1,2,6,12,25,48,\boxed{?},\ldots$.
HKIMO 2026 THPT (Grades 10–12 shared) National Preliminary Set 04 Question 1
HKIMO · HKIMO 2026 THPT (Grades 10–12 shared) National Preliminary Set 04
HKIMO · HKIMO 2026 THPT (Grades 10–12 shared) National Preliminary Set 04