Number of (n+1) X 2 0..2 arrays with every 2 X 2 subblock nonsingular.

A183690

Number of (n+1) X 2 0..2 arrays with every 2 X 2 subblock nonsingular.

Terms

    a(0) =50a(1) =314a(2) =1970a(3) =12362a(4) =77570a(5) =486746a(6) =3054290a(7) =19165418a(8) =120261410a(9) =754630394a(10) =4735243250a(11) =29713259402a(12) =186448243010

External references