Number of 4Xn 0..1 arrays with every element equal to 0, 1, 3 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A302429
Number of 4Xn 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) =10a(2) =21a(3) =42a(4) =83a(5) =235a(6) =532a(7) =1250a(8) =2839a(9) =6972a(10) =16274a(11) =38248a(12) =89001a(13) =212049a(14) =499017a(15) =1173745a(16) =2751350a(17) =6500703a(18) =15315258a(19) =36048935a(20) =84729145a(21) =199692020a(22) =470383120a(23) =1107496019a(24) =2605813342a(25) =6136943366a(26) =14452575010a(27) =34030167171a(28) =80103073519
External references
- oeis: A302429