Number of (n+1) X 4 0..4 arrays with every 2 X 2 subblock summing to 8.

A183646

Number of (n+1) X 4 0..4 arrays with every 2 X 2 subblock summing to 8.

Terms

    a(0) =1333a(1) =3445a(2) =10213a(3) =33325a(4) =116653a(5) =431125a(6) =1664533a(7) =6663805a(8) =27510973a(9) =116631205a(10) =506044453a(11) =2240844685a(12) =10102562893a(13) =46271013685a(14) =214876977973

External references