Number of 4Xn 0..2 arrays with rows, diagonals and antidiagonals unimodal.
A223791
Number of 4Xn 0..2 arrays with rows, diagonals and antidiagonals unimodal.
Terms
- a(0) =81a(1) =6561a(2) =151580a(3) =1560013a(4) =11012718a(5) =61333566a(6) =288823579a(7) =1196519547a(8) =4468789562a(9) =15293854291a(10) =48524120300a(11) =143996244303a(12) =402491787780
External references
- oeis: A223791