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A218016 as a triangular array

1
51
25102
12575306
62550030012024
3125312525001500600120
1562518750187501500090003600720
7812510937513125013125010500063000252005040
3906256250008750001050000105000084000050400020160040320

A218016 as a square array

152512562531251562578125390625
11075500312518750109375625000
230300250018750131250875000
61201500150001312501050000
2460090001050001050000
120360063000840000
72025200504000
5040201600
40320
152512562531251562578125390625
11075500312518750109375625000
230300250018750131250875000
61201500150001312501050000
2460090001050001050000
120360063000840000
72025200504000
5040201600
40320