Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal minimum nondecreasing horizontally and vertically.
A254237
Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal minimum nondecreasing horizontally and vertically.
Terms
- a(0) =10684a(1) =38392a(2) =195528a(3) =970333a(4) =3702284a(5) =13376848a(6) =46946080a(7) =151691950a(8) =473298612a(9) =1441563263a(10) =4285234118a(11) =12549667259a(12) =36365093642a(13) =104261277810a(14) =296592191300a(15) =838536063660
External references
- oeis: A254237