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A111924 formatted as a triangular array:

1
1 1
1 3 0
1 6 3 0
1 10 15 0 0
1 15 45 15 0 0
1 21 105 105 0 0 0
1 28 210 420 105 0 0 0
1 36 378 1260 945 0 0 0 0
1 45 630 3150 4725 945 0 0 0 0
1 55 990 6930 17325 10395 0 0 0 0 0

A111924 formatted as a square array:

1 1 1 1 1 1 1 1 1 1 1
1 3 6 10 15 21 28 36 45 55
0 3 15 45 105 210 378 630 990
0 0 15 105 420 1260 3150 6930
0 0 0 105 945 4725 17325
0 0 0 0 945 10395
0 0 0 0 0
0 0 0 0
0 0 0
0 0
0

A111924 formatted as an upper right triangle:

1 1 1 1 1 1 1 1 1 1 1
1 3 6 10 15 21 28 36 45 55
0 3 15 45 105 210 378 630 990
0 0 15 105 420 1260 3150 6930
0 0 0 105 945 4725 17325
0 0 0 0 945 10395
0 0 0 0 0
0 0 0 0
0 0 0
0 0
0

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Last modified December 18 21:37 EST 2009. Contains 171024 sequences.


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