Number of nX4 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 0 and 1 0 1 vertically.

A208024

Number of nX4 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 0 and 1 0 1 vertically.

Terms

    a(0) =10a(1) =100a(2) =378a(3) =1377a(4) =4823a(5) =17119a(6) =61292a(7) =218243a(8) =776100a(9) =2765576a(10) =9852117a(11) =35078967a(12) =124935587a(13) =444991022a(14) =1584772385a(15) =5644067960a(16) =20101607046a(17) =71591508557a(18) =254970749655a(19) =908076480129

External references