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A090657 formatted as a triangular array:

1
0 1
0 2 2
0 3 18 6
0 4 84 144 24
0 5 300 1500 1200 120
0 6 930 10800 23400 10800 720
0 7 2646 63210 294000 352800 105840 5040
0 8 7112 324576 2857680 7056000 5362560 1128960 40320

A090657 formatted as a square array:

1 0 0 0 0 0 0 0 0
1 2 3 4 5 6 7 8
2 18 84 300 930 2646 7112
6 144 1500 10800 63210 324576
24 1200 23400 294000 2857680
120 10800 352800 7056000
720 105840 5362560
5040 1128960
40320

A090657 formatted as an upper right triangle:

1 0 0 0 0 0 0 0 0
1 2 3 4 5 6 7 8
2 18 84 300 930 2646 7112
6 144 1500 10800 63210 324576
24 1200 23400 294000 2857680
120 10800 352800 7056000
720 105840 5362560
5040 1128960
40320

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Last modified December 11 12:57 EST 2009. Contains 170656 sequences.


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