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

A223954

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

Terms

    a(0) =128a(1) =2187a(2) =6869a(3) =12856a(4) =20275a(5) =31899a(6) =52532a(7) =89135a(8) =152495a(9) =259230a(10) =434069a(11) =712692a(12) =1145194a(13) =1800237a(14) =2769954a(15) =4175669a(16) =6174497a(17) =8966888a(18) =12805179a(19) =18003218a(20) =24947124a(21) =34107247a(22) =46051392a(23) =61459371a(24) =81138947a(25) =106043234a(26) =137289617

External references