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

A207468

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

Terms

    a(0) =10a(1) =100a(2) =358a(3) =1307a(4) =4219a(5) =11760a(6) =33393a(7) =88198a(8) =229458a(9) =590832a(10) =1486909a(11) =3739145a(12) =9312304a(13) =23088739a(14) =57148946a(15) =140903738a(16) =347166896a(17) =854103343a(18) =2099195971a(19) =5157634036a(20) =12663610465a(21) =31086972482a(22) =76294760274a(23) =187208257122

External references