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A047662 formatted as a triangular array:

1
2 2
3 6 3
4 12 12 4
5 20 31 20 5
6 30 64 64 30 6
7 42 115 160 115 42 7
8 56 188 340 340 188 56 8
9 72 287 644 841 644 287 72 9
10 90 416 1120 1826 1826 1120 416 90 10

A047662 formatted as a square array:

1 2 3 4 5 6 7 8 9 10
2 6 12 20 30 42 56 72 90
3 12 31 64 115 188 287 416
4 20 64 160 340 644 1120
5 30 115 340 841 1826
6 42 188 644 1826
7 56 287 1120
8 72 416
9 90
10

A047662 formatted as an upper right triangle:

1 2 3 4 5 6 7 8 9 10
2 6 12 20 30 42 56 72 90
3 12 31 64 115 188 287 416
4 20 64 160 340 644 1120
5 30 115 340 841 1826
6 42 188 644 1826
7 56 287 1120
8 72 416
9 90
10

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


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