189133073

Properties

Appears in sequences

• The number of tilings of a 3 X n rectangle using integer length rectangles with at least one side of length 1, i.e., tiles are 1 X 1, 1 X 2, ..., 1 X n, 2 X 1, 3 X 1.at n=9A254124
• Prime numbersat n=10509998