T(n,k)=Number of nXk 0..1 arrays with every element equal to 1, 2 or 3 horizontally or vertically adjacent elements, with upper left element zero.

A301615

T(n,k)=Number of nXk 0..1 arrays with every element equal to 1, 2 or 3 horizontally or vertically adjacent elements, with upper left element zero.

Terms

    a(0) =0a(1) =1a(2) =1a(3) =1a(4) =3a(5) =1a(6) =2a(7) =11a(8) =11a(9) =2a(10) =3a(11) =34a(12) =62a(13) =34a(14) =3a(15) =5a(16) =111a(17) =367a(18) =367a(19) =111a(20) =5a(21) =8a(22) =361a(23) =2131a(24) =3816a(25) =2131a(26) =361a(27) =8a(28) =13a(29) =1172

External references