Number of 4Xn 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 1 0 and 1 0 1 vertically.

A207520

Number of 4Xn 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 1 0 and 1 0 1 vertically.

Terms

    a(0) =10a(1) =100a(2) =358a(3) =1307a(4) =5458a(5) =19909a(6) =68807a(7) =243954a(8) =851870a(9) =2913994a(10) =9973355a(11) =34091714a(12) =115887871a(13) =393267367a(14) =1334118596a(15) =4519810862a(16) =15299142694a(17) =51772884227a(18) =175141804206a(19) =592296849671

External references