Number of n X 4 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 1 0 1 vertically.

Terms

a(0) =10a(1) =100a(2) =240a(3) =420a(4) =640a(5) =900a(6) =1200a(7) =1540a(8) =1920a(9) =2340a(10) =2800a(11) =3300a(12) =3840a(13) =4420a(14) =5040a(15) =5700a(16) =6400a(17) =7140a(18) =7920a(19) =8740a(20) =9600a(21) =10500a(22) =11440a(23) =12420a(24) =13440a(25) =14500a(26) =15600a(27) =16740a(28) =17920a(29) =19140