Number of (n+2)X(2+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
A254798
Number of (n+2)X(2+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
Terms
- a(0) =2700a(1) =10484a(2) =46026a(3) =132639a(4) =479464a(5) =1478353a(6) =5237645a(7) =17246499a(8) =60236570a(9) =204026967a(10) =706743239a(11) =2418324163a(12) =8340069598a(13) =28629854395a(14) =98536216359a(15) =338578011548
External references
- oeis: A254798