Number of nX7 0..1 arrays with every element equal to 2 or 3 king-move adjacent elements, with upper left element zero.

A297813

Number of nX7 0..1 arrays with every element equal to 2 or 3 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =0a(1) =22a(2) =0a(3) =41a(4) =39a(5) =114a(6) =88a(7) =296a(8) =499a(9) =1270a(10) =2439a(11) =5497a(12) =12108a(13) =26721a(14) =58621a(15) =128316a(16) =283619a(17) =628215a(18) =1389912a(19) =3076763a(20) =6814301a(21) =15113680a(22) =33531657a(23) =74416589a(24) =165212328a(25) =366939315a(26) =815262225a(27) =1811756368a(28) =4027063243a(29) =8952787851

External references