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A156588 as a triangular array

1
11
1-12
1-126
1-13-1224
1-14-36288120
1-15-802160-34560720
1-16-1509600-777600248832005040
1-17-25231500-80640001959552000-12541132800040320
1-18-39284672-52920000

A156588 as a square array

1111111111
1-1-1-1-1-1-1-1-1
22345678
6-12-36-80-150-252-392
24288216096003150084672
120-34560-777600-8064000-52920000
720248832001959552000
5040-125411328000
40320

A156588 as an upper right triangle

1111111111
1-1-1-1-1-1-1-1-1
22345678
6-12-36-80-150-252-392
24288216096003150084672
120-34560-777600-8064000-52920000
720248832001959552000
5040-125411328000
40320

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Last modified August 3 06:22 EDT 2021. Contains 346435 sequences. (Running on oeis4.)