Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,0,4,1,2 for x=0,1,2,3,4.

A196145

Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,0,4,1,2 for x=0,1,2,3,4.

Terms

    a(0) =17a(1) =123a(2) =178a(3) =865a(4) =2781a(5) =7486a(6) =24615a(7) =85533a(8) =266059a(9) =866323a(10) =2817802a(11) =9024682a(12) =29161693a(13) =94823673a(14) =306912929a(15) =992919095a(16) =3216924395a(17) =10417479713a(18) =33734415945a(19) =109304966265a(20) =354134153161

External references