Number of 6Xn 0..1 arrays with every element equal to 0, 1, 3 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A302639
Number of 6Xn 0..1 arrays with every element equal to 0, 1, 3 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =32a(1) =42a(2) =82a(3) =248a(4) =719a(5) =2262a(6) =6460a(7) =19799a(8) =59002a(9) =179668a(10) =535412a(11) =1618765a(12) =4863776a(13) =14679083a(14) =44118667a(15) =132955659a(16) =400197277a(17) =1205668487a(18) =3629343498a(19) =10930567358a(20) =32912798461a(21) =99120195646a(22) =298461584492a(23) =898783501386
External references
- oeis: A302639