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

Terms

a(0) =29a(1) =239a(2) =1163a(3) =4166a(4) =12174a(5) =30738a(6) =69498a(7) =144111a(8) =278707a(9) =508937a(10) =885677a(11) =1479452a(12) =2385644a(13) =3730548a(14) =5678340a(15) =8439021a(16) =12277401a(17) =17523187a(18) =24582239a(19) =33949058a(20) =46220570a(21) =62111270a(22) =82469790a(23) =108296955a(24) =140765391a(25) =181240749a(26) =231304609