Number of nX5 0..1 arrays with every element equal to 1, 2, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
A300766
Number of nX5 0..1 arrays with every element equal to 1, 2, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =3a(1) =37a(2) =87a(3) =247a(4) =783a(5) =2361a(6) =7353a(7) =23095a(8) =72298a(9) =229126a(10) =723394a(11) =2290274a(12) =7262763a(13) =23090954a(14) =73508477a(15) =234288547a(16) =747283403a(17) =2384965803a(18) =7615368438a(19) =24327617166a(20) =77748066299a(21) =248566586028a(22) =794939652623
External references
- oeis: A300766