Number of nX4 0..1 arrays with every element equal to 0, 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero.

A298550

Number of nX4 0..1 arrays with every element equal to 0, 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =1a(1) =18a(2) =14a(3) =33a(4) =74a(5) =226a(6) =716a(7) =2211a(8) =6851a(9) =21462a(10) =67050a(11) =211080a(12) =665938a(13) =2101358a(14) =6629389a(15) =20925470a(16) =66062395a(17) =208588663a(18) =658697076a(19) =2080208913a(20) =6569640501a(21) =20748537569a(22) =65530617366a(23) =206970394282a(24) =653697367667

External references