Number of nX7 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 1 1 and 1 1 0 vertically.

A207487

Number of nX7 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 1 1 and 1 1 0 vertically.

Terms

    a(0) =25a(1) =625a(2) =2141a(3) =6217a(4) =21991a(5) =73325a(6) =268275a(7) =959855a(8) =3607311a(9) =13436035a(10) =51497695a(11) =196706551a(12) =765001527a(13) =2972743953a(14) =11691712763a(15) =46007927815a(16) =182581500547a(17) =725456035227

External references