A184125 Number of nX5 0..3 arrays with rows and columns in nondecreasing order.
56, 12068, 4249486, 1361812470, 348053502590, 71759424776253, 12323643023399737, 1812407940171867666, 233154749874813919293, 26665385106037737856103, 2745847883076898964068450
Offset: 1
Keywords
Examples
Some solutions for 3X5 ..0..0..0..0..1....0..0..0..2..3....0..0..0..3..3....0..0..0..1..3 ..0..1..2..2..3....0..0..3..2..3....0..1..1..0..3....0..0..0..2..1 ..0..3..0..3..1....0..3..1..2..0....0..1..3..1..2....0..2..2..1..1
Links
- R. H. Hardin, Table of n, a(n) for n = 1..200
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