Number of nX3 0..1 arrays with every element equal to 0, 1, 3, 4 or 6 king-move adjacent elements, with upper left element zero.

A298315

Number of nX3 0..1 arrays with every element equal to 0, 1, 3, 4 or 6 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =3a(1) =3a(2) =3a(3) =9a(4) =17a(5) =48a(6) =94a(7) =234a(8) =589a(9) =1333a(10) =3352a(11) =8249a(12) =19791a(13) =49537a(14) =121580a(15) =298541a(16) =742378a(17) =1829015a(18) =4522372a(19) =11211918a(20) =27706062a(21) =68616420a(22) =169961599a(23) =420628570a(24) =1041975554a(25) =2580637115a(26) =6390580550a(27) =15830521413a(28) =39209427019a(29) =97117538254

External references