Number of ways to tile an n X n square with 1 X 1 squares and (n-2) X 2 vertical or horizontal rectangles.

A347636

Number of ways to tile an n X n square with 1 X 1 squares and (n-2) X 2 vertical or horizontal rectangles.

Terms

    a(0) =193a(1) =399a(2) =783a(3) =1601a(4) =3283a(5) =6947a(6) =14897a(7) =32607a(8) =72175a(9) =161649a(10) =364611a(11) =827555a(12) =1885729a(13) =4310639a(14) =9874319a(15) =22654881a(16) =52032883a(17) =119601123a(18) =275058321a(19) =632823743a(20) =1456319215a(21) =3352072913a(22) =7716633443a(23) =17765737443a(24) =40904125825a(25) =94182711375

External references