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

A223769

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

Terms

    a(0) =29a(1) =267a(2) =1097a(3) =3141a(4) =7564a(5) =16742a(6) =35513a(7) =73427a(8) =149053a(9) =297518a(10) =583860a(11) =1125118a(12) =2126567a(13) =3939287a(14) =7150127a(15) =12719513a(16) =22189580a(17) =37994506a(18) =63918056a(19) =105761409a(20) =172308985a(21) =276713314a(22) =438464653a(23) =686170386a(24) =1061447357a(25) =1624332246

External references