Number of nX4 0..1 arrays with every repeated value in every row greater than or equal to, and in every column greater than, the previous repeated value.
A267784
Number of nX4 0..1 arrays with every repeated value in every row greater than or equal to, and in every column greater than, the previous repeated value.
Terms
- a(0) =15a(1) =225a(2) =1056a(3) =5081a(4) =14956a(5) =44742a(6) =102954a(7) =238813a(8) =472174a(9) =935890a(10) =1669256a(11) =2973801a(12) =4921484a(13) =8116406a(14) =12686802a(15) =19733869a(16) =29485150a(17) =43804354a(18) =63094592a(19) =90326137a(20) =126206748a(21) =175240166a(22) =238647082a(23) =322974141a(24) =430276638a(25) =569730226
External references
- oeis: A267784