Number of nX5 0..1 arrays with every element equal to 0, 1, 3 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A302424
Number of nX5 0..1 arrays with every element equal to 0, 1, 3 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =8a(1) =25a(2) =38a(3) =83a(4) =372a(5) =992a(6) =2503a(7) =7611a(8) =21321a(9) =57872a(10) =165477a(11) =466562a(12) =1295244a(13) =3650383a(14) =10273619a(15) =28731647a(16) =80699298a(17) =226782203a(18) =635782434a(19) =1784439210a(20) =5010891107a(21) =14059108195a(22) =39455529673a(23) =110758862832a(24) =310832105329a(25) =872338548750
External references
- oeis: A302424