Number of nX6 0..2 arrays with rows and columns unimodal and antidiagonals nondecreasing.
A224055
Number of nX6 0..2 arrays with rows and columns unimodal and antidiagonals nondecreasing.
Terms
- a(0) =148a(1) =4690a(2) =57911a(3) =428949a(4) =2392915a(5) =11231300a(6) =46853641a(7) =179545949a(8) =646161612a(9) =2215310269a(10) =7295294696a(11) =23173431000a(12) =71137228340a(13) =211216789027a(14) =606907100518
External references
- oeis: A224055