Number of nX4 0..1 arrays with every element equal to 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero.

A298083

Number of nX4 0..1 arrays with every element equal to 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =0a(1) =2a(2) =3a(3) =10a(4) =28a(5) =76a(6) =213a(7) =645a(8) =1852a(9) =5642a(10) =17016a(11) =51810a(12) =158290a(13) =484347a(14) =1484262a(15) =4552873a(16) =13976949a(17) =42918852a(18) =131843755a(19) =405082273a(20) =1244758709a(21) =3825355448a(22) =11756644688a(23) =36133929611a(24) =111060564589a(25) =341360933527

External references