Number of 7 X n 0..1 arrays with rows, diagonals and antidiagonals unimodal and columns nondecreasing.

A223843

Number of 7 X n 0..1 arrays with rows, diagonals and antidiagonals unimodal and columns nondecreasing.

Terms

    a(0) =8a(1) =64a(2) =342a(3) =1356a(4) =4325a(5) =11749a(6) =28369a(7) =62869a(8) =130891a(9) =260219a(10) =499470a(11) =932402a(12) =1701094a(13) =3042926a(14) =5348741a(15) =9253153a(16) =15773146a(17) =26518532a(18) =44008367a(19) =72142211a(20) =116895662a(21) =187337832a(22) =297106834a(23) =466531024a(24) =725652569a(25) =1118500677a(26) =1709080380a(27) =2589696200a(28) =3892426882a(29) =5804817830

External references