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

A224157

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

Terms

    a(0) =29a(1) =267a(2) =1252a(3) =4339a(4) =13283a(5) =39037a(6) =114537a(7) =340134a(8) =1025559a(9) =3143071a(10) =9794989a(11) =31018972a(12) =99708260a(13) =324764638a(14) =1069736878a(15) =3556096357a(16) =11908005965a(17) =40101772888a(18) =135631552056a(19) =460218357877

External references