Number of (n+1)X5 binary arrays with every 2X2 subblock diagonal sum less antidiagonal sum equal to some horizontal or vertical neighbor 2X2 subblock diagonal sum less antidiagonal sum.
A186123
Number of (n+1)X5 binary arrays with every 2X2 subblock diagonal sum less antidiagonal sum equal to some horizontal or vertical neighbor 2X2 subblock diagonal sum less antidiagonal sum.
Terms
- a(0) =50a(1) =254a(2) =946a(3) =4254a(4) =17794a(5) =79782a(6) =350266a(7) =1574348a(8) =7039308a(9) =31791832a(10) =143422488a(11) =649853710a(12) =2944761666a(13) =13369773598a(14) =60719993934a(15) =276010194872
External references
- oeis: A186123