Number of 3Xn 0..1 arrays with every element equal to 0, 1, 2 or 4 horizontally or antidiagonally adjacent elements, with upper left element zero.
A302070
Number of 3Xn 0..1 arrays with every element equal to 0, 1, 2 or 4 horizontally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =4a(1) =32a(2) =148a(3) =748a(4) =3657a(5) =18108a(6) =89658a(7) =444359a(8) =2202106a(9) =10912859a(10) =54080195a(11) =268002332a(12) =1328125172a(13) =6581720890a(14) =32616691234a(15) =161636836900a(16) =801015249307
External references
- oeis: A302070