Number of nX4 0..3 arrays with rows, columns and antidiagonals unimodal and diagonals nondecreasing.
A224060
Number of nX4 0..3 arrays with rows, columns and antidiagonals unimodal and diagonals nondecreasing.
Terms
- a(0) =130a(1) =4580a(2) =58814a(3) =506513a(4) =3509115a(5) =21167501a(6) =114643788a(7) =564290412a(8) =2542634801a(9) =10557558941a(10) =40668731568a(11) =146309729951a(12) =494716846368
External references
- oeis: A224060