Number of (n+2)X(2+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal minimum nondecreasing horizontally and vertically.
A254236
Number of (n+2)X(2+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal minimum nondecreasing horizontally and vertically.
Terms
- a(0) =2616a(1) =9209a(2) =38392a(3) =167637a(4) =637570a(5) =2228050a(6) =7570126a(7) =24603175a(8) =77699926a(9) =240604963a(10) =731676813a(11) =2193193398a(12) =6506008066a(13) =19128153912a(14) =55819067155a(15) =161889609500a(16) =467100675752
External references
- oeis: A254236