A224279 Number of nX6 0..3 arrays with diagonals and rows unimodal and antidiagonals nondecreasing.
610, 59792, 2059793, 44901359, 817075668, 14587480744, 274116529912, 5481124776302, 115036474923900, 2489043013161042, 54774515108860284, 1216015762754882736, 27117272628943751854, 606168132402047719588
Offset: 1
Keywords
Examples
Some solutions for n=3 ..0..0..0..1..1..1....0..0..0..0..3..0....0..0..0..0..1..0....0..0..0..0..1..0 ..0..0..1..2..1..0....0..0..0..3..3..0....0..0..0..2..2..0....0..0..0..2..0..0 ..0..3..3..3..2..1....0..3..3..3..2..2....0..2..3..2..1..1....0..0..3..3..1..1
Links
- R. H. Hardin, Table of n, a(n) for n = 1..210
Comments