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A071223 formatted as a triangular array:

2
2 6
2 12 24
2 20 72 120
2 30 172 480 720
2 42 352 1512 3600 5040
2 56 646 3976 14184 30240 40320
2 72 1094 9144 45992 143712 282240 362880
2 90 1742 18990 128288 557640 1575648 2903040 3628800

A071223 formatted as a square array:

2 2 2 2 2 2 2 2 2
6 12 20 30 42 56 72 90
24 72 172 352 646 1094 1742
120 480 1512 3976 9144 18990
720 3600 14184 45992 128288
5040 30240 143712 557640
40320 282240 1575648
362880 2903040
3628800

A071223 formatted as an upper right triangle:

2 2 2 2 2 2 2 2 2
6 12 20 30 42 56 72 90
24 72 172 352 646 1094 1742
120 480 1512 3976 9144 18990
720 3600 14184 45992 128288
5040 30240 143712 557640
40320 282240 1575648
362880 2903040
3628800

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Last modified December 5 23:38 EST 2009. Contains 170428 sequences.


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