Number of 4Xn 0..1 arrays with every element equal to 0 or 1 horizontally or antidiagonally adjacent elements, with upper left element zero.

A301793

Number of 4Xn 0..1 arrays with every element equal to 0 or 1 horizontally or antidiagonally adjacent elements, with upper left element zero.

Terms

    a(0) =8a(1) =34a(2) =24a(3) =32a(4) =45a(5) =66a(6) =100a(7) =155a(8) =244a(9) =388a(10) =621a(11) =998a(12) =1608a(13) =2595a(14) =4192a(15) =6776a(16) =10957a(17) =17722a(18) =28668a(19) =46379a(20) =75036a(21) =121404a(22) =196429a(23) =317822a(24) =514240a(25) =832051a(26) =1346280a(27) =2178320a(28) =3524589a(29) =5702898

External references