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A050447 formatted as a triangular array:

1
1 1
1 2 1
1 3 3 1
1 4 6 5 1
1 5 10 14 8 1
1 6 15 30 31 13 1
1 7 21 55 85 70 21 1
1 8 28 91 190 246 157 34 1
1 9 36 140 371 671 707 353 55 1
1 10 45 204 658 1547 2353 2037 793 89 1

A050447 formatted as a square array:

1 1 1 1 1 1 1 1 1 1 1
1 2 3 4 5 6 7 8 9 10
1 3 6 10 15 21 28 36 45
1 5 14 30 55 91 140 204
1 8 31 85 190 371 658
1 13 70 246 671 1547
1 21 157 707 2353
1 34 353 2037
1 55 793
1 89
1

A050447 formatted as an upper right triangle:

1 1 1 1 1 1 1 1 1 1 1
1 2 3 4 5 6 7 8 9 10
1 3 6 10 15 21 28 36 45
1 5 14 30 55 91 140 204
1 8 31 85 190 371 658
1 13 70 246 671 1547
1 21 157 707 2353
1 34 353 2037
1 55 793
1 89
1

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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.


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