Number of nX4 0..1 arrays with every element equal to 0, 1, 2, 3 or 6 king-move adjacent elements, with upper left element zero.

A298283

Number of nX4 0..1 arrays with every element equal to 0, 1, 2, 3 or 6 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =8a(1) =85a(2) =205a(3) =649a(4) =2151a(5) =7006a(6) =22768a(7) =73751a(8) =238775a(9) =774481a(10) =2512751a(11) =8150845a(12) =26436856a(13) =85743702a(14) =278106216a(15) =902050023a(16) =2925843269a(17) =9490084506a(18) =30781419275a(19) =99840712815a(20) =323837616855

External references