1/4 the number of (n+1) X 2 0..3 arrays with no 2 X 2 subblock having sum 6.

A183794

1/4 the number of (n+1) X 2 0..3 arrays with no 2 X 2 subblock having sum 6.

Terms

    a(0) =53a(1) =706a(2) =9395a(3) =125050a(4) =1664363a(5) =22152262a(6) =294840155a(7) =3924240130a(8) =52230527579a(9) =695173613662

External references