Number of nX7 0..1 arrays with rows and columns unimodal and antidiagonals nondecreasing.

A223776

Number of nX7 0..1 arrays with rows and columns unimodal and antidiagonals nondecreasing.

Terms

    a(0) =29a(1) =267a(2) =1269a(3) =4246a(4) =11635a(5) =28346a(6) =64256a(7) =138913a(8) =290180a(9) =589799a(10) =1170809a(11) =2274787a(12) =4331570a(13) =8091182a(14) =14838137a(15) =26733456a(16) =47351379a(17) =82508140a(18) =141522193a(19) =239102564a(20) =398139077a(21) =653770622a(22) =1059242178a(23) =1694236163a(24) =2676588670a(25) =4178587937

External references