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A144220 formatted as a triangular array:

1
2 -1
-3 1 1
-4 0 4 -1
5 2 -10 3 1
6 5 -20 5 6 -1
-7 -9 35 5 -21 5 1
-8 -14 56 0 -56 14 8 -1
9 20 -84 -14 126 -28 -36 7 1
10 27 -120 -42 252 -42 -120 27 10 -1
-11 -35 165 90 -462 42 330 -75 -55 9 1

A144220 formatted as a square array:

1 2 -3 -4 5 6 -7 -8 9 10 -11
-1 1 0 2 5 -9 -14 20 27 -35
1 4 -10 -20 35 56 -84 -120 165
-1 3 5 5 0 -14 -42 90
1 6 -21 -56 126 252 -462
-1 5 14 -28 -42 42
1 8 -36 -120 330
-1 7 27 -75
1 10 -55
-1 9
1

A144220 formatted as an upper right triangle:

1 2 -3 -4 5 6 -7 -8 9 10 -11
-1 1 0 2 5 -9 -14 20 27 -35
1 4 -10 -20 35 56 -84 -120 165
-1 3 5 5 0 -14 -42 90
1 6 -21 -56 126 252 -462
-1 5 14 -28 -42 42
1 8 -36 -120 330
-1 7 27 -75
1 10 -55
-1 9
1

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


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