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A137712 as a triangular array

1
11
201
3101
51001
821001
13310001
215210001
3483200001
551352200001
8921842100001
1443413642100001
233552110541100001

A137712 as a square array

1123581321345589144233
1011235813213455
1001123581321
10001224610
100002245
10000124
1000011
100001
10000
1000
100
10
1
1123581321345589144233
1011235813213455
1001123581321
10001224610
100002245
10000124
1000011
100001
10000
1000
100
10
1