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A009766 formatted as a triangular array:

1
1 1
1 2 2
1 3 5 5
1 4 9 14 14
1 5 14 28 42 42
1 6 20 48 90 132 132
1 7 27 75 165 297 429 429
1 8 35 110 275 572 1001 1430 1430
1 9 44 154 429 1001 2002 3432 4862 4862

A009766 formatted as a square array:

1 1 1 1 1 1 1 1 1 1
1 2 3 4 5 6 7 8 9
2 5 9 14 20 27 35 44
5 14 28 48 75 110 154
14 42 90 165 275 429
42 132 297 572 1001
132 429 1001 2002
429 1430 3432
1430 4862
4862

A009766 formatted as an upper right triangle:

1 1 1 1 1 1 1 1 1 1
1 2 3 4 5 6 7 8 9
2 5 9 14 20 27 35 44
5 14 28 48 75 110 154
14 42 90 165 275 429
42 132 297 572 1001
132 429 1001 2002
429 1430 3432
1430 4862
4862

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.


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