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A144225 formatted as a triangular array:

1
0 0
0 1 0
0 1 1 0
0 1 2 1 0
0 1 3 3 1 0
0 1 4 6 4 1 0
0 1 5 10 10 5 1 0
0 1 6 15 20 15 6 1 0
0 1 7 21 35 35 21 7 1 0
0 1 8 28 56 70 56 28 8 1 0
0 1 9 36 84 126 126 84 36 9 1 0

A144225 formatted as a square array:

1 0 0 0 0 0 0 0 0 0 0 0
0 1 1 1 1 1 1 1 1 1 1
0 1 2 3 4 5 6 7 8 9
0 1 3 6 10 15 21 28 36
0 1 4 10 20 35 56 84
0 1 5 15 35 70 126
0 1 6 21 56 126
0 1 7 28 84
0 1 8 36
0 1 9
0 1
0

A144225 formatted as an upper right triangle:

1 0 0 0 0 0 0 0 0 0 0 0
0 1 1 1 1 1 1 1 1 1 1
0 1 2 3 4 5 6 7 8 9
0 1 3 6 10 15 21 28 36
0 1 4 10 20 35 56 84
0 1 5 15 35 70 126
0 1 6 21 56 126
0 1 7 28 84
0 1 8 36
0 1 9
0 1
0

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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.


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