A254167 Number of (n+2)X(7+2) 0..1 arrays with every 3X3 subblock diagonal maximum minus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
6440848, 251430924, 11377995944, 443654425392, 17154177879840, 684072377169008, 27196332026497280, 1080962116495110480, 43035049375564396528, 1714089719759716209888, 68251517989933263549920
Offset: 1
Keywords
Examples
Some solutions for n=1 ..0..0..0..0..1..0..1..1..0....0..0..0..0..1..0..1..1..0 ..1..0..0..1..0..1..1..0..0....0..1..1..0..0..1..0..1..1 ..1..1..0..0..0..0..0..1..1....1..1..1..1..1..0..0..0..1
Links
- R. H. Hardin, Table of n, a(n) for n = 1..142
Comments