A184126 Number of nX6 0..3 arrays with rows and columns in nondecreasing order.
84, 43947, 53817407, 68564445616, 71759424776253, 60704077222861152, 42630936592613426327, 25543138074385245659345, 13344262317615708218916589, 6180837269782270549411789459, 2571641374571848612017288269301
Offset: 1
Keywords
Examples
Some solutions for 3X6 ..0..0..0..0..1..1....0..0..0..0..2..2....0..0..0..0..3..3....0..0..0..0..1..3 ..0..0..0..1..0..0....0..0..0..1..0..2....0..0..0..2..0..0....0..0..0..2..0..1 ..0..0..2..3..0..2....0..0..1..1..0..3....0..0..2..3..0..1....0..0..2..3..0..1
Links
- R. H. Hardin, Table of n, a(n) for n = 1..71
Comments