A229799 Number of 6X6 0..n arrays with rows and columns in lexicographically nondecreasing order.
2625117, 2533164987353, 60704077222861152, 161327438675038562165, 103937249022030445057526, 24982715242286897029686383, 2907883712766278818772179090, 194172351727597419593410162517
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..0 ..0..0..0..0..1..1....0..0..0..0..1..1....0..0..0..0..0..1....0..0..0..0..1..1 ..0..0..1..1..0..1....0..0..1..1..0..0....0..0..0..1..1..0....0..0..0..1..0..1 ..0..1..0..1..1..0....0..1..1..1..0..0....0..0..1..1..1..0....0..0..1..0..0..0 ..0..1..1..1..1..1....1..0..0..0..0..1....0..1..0..0..1..0....0..0..1..1..0..1 ..1..0..0..1..1..1....1..0..0..0..0..1....0..1..1..1..0..0....0..0..1..1..1..1
Links
- R. H. Hardin, Table of n, a(n) for n = 1..9
Comments