262191

Appears in sequences

• Number of tilings of a 5 X n rectangle using dominoes and right trominoes.at n=6A219988
• Number of tilings of a 6 X n rectangle using dominoes and right trominoes.at n=5A219989
• a(n) = 2^n*(n + 2) + (n - 7)*n/2 - 2.at n=13A362526