Number of 5Xn 0..1 arrays with every element equal to 0, 1, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A302683
Number of 5Xn 0..1 arrays with every element equal to 0, 1, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =16a(1) =9a(2) =11a(3) =33a(4) =63a(5) =187a(6) =661a(7) =1837a(8) =5075a(9) =15661a(10) =46975a(11) =135191a(12) =398107a(13) =1187251a(14) =3492697a(15) =10253381a(16) =30301323a(17) =89476359a(18) =263483993a(19) =776726391a(20) =2291909243a(21) =6757855265a(22) =19921284797a(23) =58748244533a(24) =173250475905a(25) =510831651353
External references
- oeis: A302683