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A047916 formatted as a triangular array:

1
2 2
6 0 6
8 8 0 24
20 0 0 0 120
12 36 48 0 0 720
42 0 0 0 0 0 5040
32 64 0 384 0 0 0 40320
54 0 324 0 0 0 0 0 362880
40 200 0 0 3840 0 0 0 0 3628800
110 0 0 0 0 0 0 0 0 0 39916800

A047916 formatted as a square array:

1 2 6 8 20 12 42 32 54 40 110
2 0 8 0 36 0 64 0 200 0
6 0 0 48 0 0 324 0 0
24 0 0 0 384 0 0 0
120 0 0 0 0 3840 0
720 0 0 0 0 0
5040 0 0 0 0
40320 0 0 0
362880 0 0
3628800 0
39916800

A047916 formatted as an upper right triangle:

1 2 6 8 20 12 42 32 54 40 110
2 0 8 0 36 0 64 0 200 0
6 0 0 48 0 0 324 0 0
24 0 0 0 384 0 0 0
120 0 0 0 0 3840 0
720 0 0 0 0 0
5040 0 0 0 0
40320 0 0 0
362880 0 0
3628800 0
39916800

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Last modified December 6 11:00 EST 2009. Contains 170428 sequences.


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