Number of 5Xn 0..3 arrays with rows unimodal and columns nondecreasing.
A223990
Number of 5Xn 0..3 arrays with rows unimodal and columns nondecreasing.
Terms
- a(0) =56a(1) =3136a(2) =99634a(3) =2086196a(4) =31831914a(5) =378122264a(6) =3661410444a(7) =29889154034a(8) =211009204916
External references
- oeis: A223990