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A227550 as a triangular array

1
11
222
6446
241081024
12034181834120
720154523652154720
504087420688882068745040
40320591410802941762941080591440320
36288046234699413744704701374699446234362880
3628800

A227550 as a square array

1126241207205040403203628803628800
1241034154874591446234
248185220610806994
6101836882941374
24345288176470
120154206294470
72087410801374
504059146994
4032046234
362880

A227550 as an upper right triangle

1126241207205040403203628803628800
1241034154874591446234
248185220610806994
6101836882941374
24345288176470
120154206294470
72087410801374
504059146994
4032046234
362880

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Last modified October 13 22:31 EDT 2019. Contains 327983 sequences. (Running on oeis4.)