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A117434 formatted as a triangular array:

1
0 1
0 1 2
0 0 4 5
0 0 2 15 14
0 0 0 15 56 42
0 0 0 5 84 210 132
0 0 0 0 56 420 792 429
0 0 0 0 14 420 1980 3003 1430
0 0 0 0 0 210 2640 9009 11440 4862
0 0 0 0 0 42 1980 15015 40040 43758 16796

A117434 formatted as a square array:

1 0 0 0 0 0 0 0 0 0 0
1 1 0 0 0 0 0 0 0 0
2 4 2 0 0 0 0 0 0
5 15 15 5 0 0 0 0
14 56 84 56 14 0 0
42 210 420 420 210 42
132 792 1980 2640 1980
429 3003 9009 15015
1430 11440 40040
4862 43758
16796

A117434 formatted as an upper right triangle:

1 0 0 0 0 0 0 0 0 0 0
1 1 0 0 0 0 0 0 0 0
2 4 2 0 0 0 0 0 0
5 15 15 5 0 0 0 0
14 56 84 56 14 0 0
42 210 420 420 210 42
132 792 1980 2640 1980
429 3003 9009 15015
1430 11440 40040
4862 43758
16796

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.


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