Number of nX4 0..1 arrays with every repeated value in every row and column unequal to the previous repeated value, and new values introduced in row-major sequential order.

A267640

Number of nX4 0..1 arrays with every repeated value in every row and column unequal to the previous repeated value, and new values introduced in row-major sequential order.

Terms

    a(0) =5a(1) =50a(2) =189a(3) =1015a(4) =2887a(5) =12623a(6) =32303a(7) =131673a(8) =319541a(9) =1277029a(10) =3001299a(11) =12025963a(12) =27634899a(13) =112196145a(14) =253256721a(15) =1046786789a(16) =2326596207a(17) =9807566523a(18) =21492349119a(19) =92416468657a(20) =199851940021a(21) =876060050789

External references