Number of nX5 0..1 arrays with every element unequal to 0, 1, 3 or 4 king-move adjacent elements, with upper left element zero.

A303805

Number of nX5 0..1 arrays with every element unequal to 0, 1, 3 or 4 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =8a(1) =35a(2) =27a(3) =55a(4) =100a(5) =174a(6) =291a(7) =588a(8) =1163a(9) =2423a(10) =4818a(11) =10036a(12) =21078a(13) =46341a(14) =100336a(15) =220565a(16) =483545a(17) =1084948a(18) =2439934a(19) =5530868a(20) =12512771a(21) =28535002a(22) =65311019a(23) =150358763a(24) =346493586a(25) =800958988a(26) =1855292658a(27) =4311716221a(28) =10037969764

External references