Number of 5Xn 0..1 arrays with every element equal to 0, 1, 3 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A302638
Number of 5Xn 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) =16a(1) =21a(2) =42a(3) =101a(4) =257a(5) =691a(6) =1734a(7) =4502a(8) =11524a(9) =30121a(10) =77399a(11) =200317a(12) =516438a(13) =1338344a(14) =3454506a(15) =8931187a(16) =23069491a(17) =59659415a(18) =154144020a(19) =398416450a(20) =1029570334a(21) =2661273981a(22) =6877566431a(23) =17775332669a(24) =45938756798a(25) =118731629576a(26) =306855446658
External references
- oeis: A302638