1572883

Appears in sequences

• If n mod 2 = 0 then 3*2^(n-1)+n-1 else 3*2^(n-1)+n.at n=19A116969
• Number of n X 2 0..1 arrays with every element unequal to 0, 2, 3 or 5 king-move adjacent elements, with upper left element zero.at n=20A304004