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A202209 as a triangular array

1
20
510
13500
3419100
89658000
233210421000
610654183110000
159719857177410000
4181591126223941400000

A202209 as a square array

12513348923361015974181
015196521065419855911
0018421837172622
00011174394
0000114
00000
0000
000
00
0
12513348923361015974181
015196521065419855911
0018421837172622
00011174394
0000114
00000
0000
000
00
0