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A350530 as a triangular array

1
10
110
1200
13000
142000
1540000
16800000
1712400000
181812840000
192428362840000
11032528411648160000

A350530 as a square array

111111111111
012345678910
00024812182432
000004122852
0000083684
0000428116
0000448
000016
0000
000
00
0
111111111111
012345678910
00024812182432
000004122852
0000083684
0000428116
0000448
000016
0000
000
00
0