Number of nX3 0..1 arrays with every element unequal to 1, 2, 3 or 5 king-move adjacent elements, with upper left element zero.

A304014

Number of nX3 0..1 arrays with every element unequal to 1, 2, 3 or 5 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =1a(1) =16a(2) =38a(3) =103a(4) =281a(5) =826a(6) =2421a(7) =7104a(8) =20732a(9) =61087a(10) =179751a(11) =529548a(12) =1561475a(13) =4603482a(14) =13574654a(15) =40041939a(16) =118101915a(17) =348367166a(18) =1027637463a(19) =3031343374a(20) =8942116280a(21) =26378505409a(22) =77814052747a(23) =229545502386a(24) =677142752205

External references