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A156319 as a triangular array

1
21
021
0021
00021
000021
0000021
00000021
000000021
0000000021

A156319 as a square array

1200000000
120000000
12000000
1200000
120000
12000
1200
120
12
1

A156319 as an upper right triangle

1200000000
120000000
12000000
1200000
120000
12000
1200
120
12
1

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Last modified May 23 23:31 EDT 2013. Contains 225613 sequences.