Number of nX4 0..1 arrays with every element unequal to 0, 1, 2, 3, 6 or 7 king-move adjacent elements, with upper left element zero.

A306049

Number of nX4 0..1 arrays with every element unequal to 0, 1, 2, 3, 6 or 7 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =8a(1) =49a(2) =142a(3) =458a(4) =1962a(5) =6604a(6) =22446a(7) =86464a(8) =311891a(9) =1100642a(10) =4051876a(11) =14751188a(12) =52994208a(13) =192694281a(14) =700643032a(15) =2533737542a(16) =9188792804a(17) =33358655064a(18) =120883510481a(19) =438255796512

External references