Number of 4Xn 0..1 arrays with every element equal to 0, 2, 3 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

A302462

Number of 4Xn 0..1 arrays with every element equal to 0, 2, 3 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

Terms

    a(0) =8a(1) =3a(2) =55a(3) =10a(4) =233a(5) =123a(6) =1518a(7) =2945a(8) =16711a(9) =58462a(10) =256863a(11) =1039347a(12) =4337252a(13) =17926079a(14) =74303683a(15) =307706930a(16) =1274892369a(17) =5281342547a(18) =21882023418a(19) =90662172089a(20) =375642965369

External references