Number of nX7 0..1 arrays with exactly n+7-2 having value 1 and no three 1s forming an isosceles right triangle.
A272957
Number of nX7 0..1 arrays with exactly n+7-2 having value 1 and no three 1s forming an isosceles right triangle.
Terms
- a(0) =7a(1) =100a(2) =499a(3) =1840a(4) =8211a(5) =26052a(6) =131056a(7) =648178a(8) =4336294
External references
- oeis: A272957