Number of nX6 0..1 arrays with every element equal to 0 or 1 horizontally or antidiagonally adjacent elements, with upper left element zero.

A301788

Number of nX6 0..1 arrays with every element equal to 0 or 1 horizontally or antidiagonally adjacent elements, with upper left element zero.

Terms

    a(0) =13a(1) =22a(2) =38a(3) =66a(4) =116a(5) =205a(6) =364a(7) =648a(8) =1156a(9) =2065a(10) =3692a(11) =6605a(12) =11821a(13) =21162a(14) =37891a(15) =67853a(16) =121517a(17) =217635a(18) =389795a(19) =698159a(20) =1250488a(21) =2239801a(22) =4011830a(23) =7185843a(24) =12871061a(25) =23054299a(26) =41294302a(27) =73965426a(28) =132485296a(29) =237304945

External references