A254174 Number of (7+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal maximum minus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
6440848, 217539476, 9378850720, 399587109728, 16524431408400, 676750215074144, 27196332026497280, 1084445796373438616, 43207926374198188784, 1720925651447157696832, 68523513350608477133408
Offset: 1
Keywords
Examples
Some solutions for n=1 ..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0 ..0..0..1....0..0..1....0..0..1....0..0..1....0..0..0....1..0..0....1..0..1 ..1..1..0....0..0..0....0..1..0....0..1..0....0..1..0....0..1..0....0..0..0 ..1..0..0....1..0..1....0..0..1....0..0..0....0..1..0....1..0..1....1..0..1 ..1..0..0....1..1..0....1..1..0....1..0..0....0..1..0....1..0..0....1..0..0 ..1..0..0....1..1..0....1..1..0....0..1..0....0..1..1....0..1..0....1..1..0 ..1..0..0....1..1..0....1..0..1....0..0..0....0..0..0....0..1..0....1..1..0 ..1..0..1....1..0..0....1..0..0....0..1..1....0..1..1....0..0..0....0..1..1 ..0..0..1....0..0..0....0..0..0....0..0..1....0..0..1....1..1..1....0..0..0
Links
- R. H. Hardin, Table of n, a(n) for n = 1..88
Comments