Number of nX6 0..1 arrays with every element unequal to 1, 2, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

A305514

Number of nX6 0..1 arrays with every element unequal to 1, 2, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =5a(1) =5a(2) =19a(3) =38a(4) =108a(5) =343a(6) =925a(7) =2627a(8) =7334a(9) =20665a(10) =56990a(11) =159501a(12) =448046a(13) =1238263a(14) =3464117a(15) =9688753a(16) =26905744a(17) =75167708a(18) =209780236a(19) =584191642a(20) =1630491607a(21) =4547388813a(22) =12677376191a(23) =35365875462a(24) =98624293125a(25) =275037739818

External references