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Search: id:A166828
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| A166828 |
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Number of nX2 1..6 arrays containing at least one of each value, all equal values connected, rows considered as a single number in nondecreasing order, and columns considered as a single number in nonincreasing order. |
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+0
1
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| 0, 0, 30, 728, 5364, 24402, 84285, 242793, 614140, 1407960, 2987500, 5953706, 11263472, 20392138, 35552387, 59984019, 98331688, 157130592, 245423322
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OFFSET
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1,3
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EXAMPLE
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All solutions for n=3
...4.3...4.3...3.1...3.1...3.1...3.1...3.2...3.2...3.2...3.2...3.1...3.1...3.2
...5.1...5.2...4.2...4.2...4.5...4.6...4.1...4.1...4.5...4.6...5.4...5.2...5.4
...6.2...6.1...5.6...6.5...6.2...5.2...5.6...6.5...6.1...5.1...6.2...6.4...6.1
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...3.2...4.1...4.1...4.2...4.2...2.1...2.1...2.1...2.1...2.1...2.1...2.1...2.1
...5.1...5.3...5.2...5.3...5.1...3.4...3.4...3.5...3.5...3.6...3.6...4.3...4.3
...6.4...6.2...6.3...6.1...6.3...5.6...6.5...6.4...4.6...5.4...4.5...5.6...6.5
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...2.1...2.1...2.1...2.1
...4.5...4.6...5.3...5.4
...6.3...5.3...6.4...6.3
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CROSSREFS
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Sequence in context: A035520 A122186 A166840 this_sequence A053509 A089507 A045689
Adjacent sequences: A166825 A166826 A166827 this_sequence A166829 A166830 A166831
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KEYWORD
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nonn
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AUTHOR
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Ron Hardin (rhhardin(AT)att.net) Oct 21 2009
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