Number of (n+2)X(1+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal minimum nondecreasing horizontally and vertically.
A254235
Number of (n+2)X(1+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal minimum nondecreasing horizontally and vertically.
Terms
- a(0) =512a(1) =2616a(2) =10684a(3) =41140a(4) =150016a(5) =514920a(6) =1700100a(7) =5487356a(8) =17402796a(9) =54388900a(10) =168051612a(11) =514608380a(12) =1564152640a(13) =4724495088a(14) =14194815516a(15) =42456223192a(16) =126490940620a(17) =375582012308
External references
- oeis: A254235