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A318950 as a triangular array

0
01
001
0002
00001
000011
0000001
00000201
000001001
0000001001
00000000001
000000210001
000000000

A318950 as a square array

0000000000000
100000000000
10000000000
2000000000
110000000
10210000
1001020
100010
10000
100
10
1
0000000000000
100000000000
10000000000
2000000000
110000000
10210000
1001020
100010
10000
100
10
1