Number of nX4 0..1 arrays with every repeated value in every row and column greater than the previous repeated value.

A267715

Number of nX4 0..1 arrays with every repeated value in every row and column greater than the previous repeated value.

Terms

    a(0) =9a(1) =81a(2) =270a(3) =872a(4) =1915a(5) =4266a(6) =7879a(7) =14632a(8) =24440a(9) =40816a(10) =63714a(11) =99260a(12) =147469a(13) =218666a(14) =312723a(15) =446708a(16) =619670a(17) =859376a(18) =1162558a(19) =1573616a(20) =2084223a(21) =2764010a(22) =3595063a(23) =4684320a(24) =5997316a(25) =7694800a(26) =9715586a(27) =12296260a(28) =15334641a(29) =19171946

External references