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A099020 formatted as a triangular array:

1
1 0
2 1 1
4 2 1 0
10 6 4 3 3
26 16 10 6 3 0
76 50 34 24 18 15 15
232 156 106 72 48 30 15 0
764 532 376 270 198 150 120 105 105
2620 1856 1324 948 678 480 330 210 105 0

A099020 formatted as a square array:

1 1 2 4 10 26 76 232 764 2620
0 1 2 6 16 50 156 532 1856
1 1 4 10 34 106 376 1324
0 3 6 24 72 270 948
3 3 18 48 198 678
0 15 30 150 480
15 15 120 330
0 105 210
105 105
0

A099020 formatted as an upper right triangle:

1 1 2 4 10 26 76 232 764 2620
0 1 2 6 16 50 156 532 1856
1 1 4 10 34 106 376 1324
0 3 6 24 72 270 948
3 3 18 48 198 678
0 15 30 150 480
15 15 120 330
0 105 210
105 105
0

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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.


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