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A221642 as a triangular array

1
12
130
1402
15000
160203
1700000
18020400
190000003
11002050000
111000000000
1120206003004
11300000000000

A221642 as a square array

1111111111111
2345678910111213
00000000000
2020202020
000000000
30405060
0000000
000000
30030
0000
000
40
0
1111111111111
2345678910111213
00000000000
2020202020
000000000
30405060
0000000
000000
30030
0000
000
40
0