Number of n X 4 0..1 arrays with every element equal to 0, 3, 4, 5 or 8 king-move adjacent elements, with upper left element zero.

A298778

Number of n X 4 0..1 arrays with every element equal to 0, 3, 4, 5 or 8 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =1a(1) =2a(2) =2a(3) =4a(4) =11a(5) =26a(6) =76a(7) =222a(8) =721a(9) =2361a(10) =7737a(11) =25780a(12) =85449a(13) =284610a(14) =947298a(15) =3154457a(16) =10507280a(17) =34994885a(18) =116569493a(19) =388281532a(20) =1293363746a(21) =4308190293a(22) =14350558511a(23) =47801810756a(24) =159227933912a(25) =530389181794

External references