Number of (n+2) X (3+2) 0..2 arrays with no 3 X 3 subblock diagonal sum less than the antidiagonal sum or central row sum less than the central column sum.
A258607
Number of (n+2) X (3+2) 0..2 arrays with no 3 X 3 subblock diagonal sum less than the antidiagonal sum or central row sum less than the central column sum.
Terms
- a(0) =682356a(1) =2729104a(2) =8093970a(3) =20602521a(4) =65662350a(5) =206037316a(6) =640379355a(7) =1895470369a(8) =5401266011a(9) =14729220496a(10) =39248673390a(11) =101659583281a(12) =259096554060a(13) =646231093225
External references
- oeis: A258607