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A350818 as a triangular array

1
11
111
1221
11411
134431
111211211
14899841
113217913211
1516162727161651
11801408140818011
16322581646481253261

A350818 as a square array

111111111111
11213141516
124412832168032
11419116125
13129792740881
118127164
14321640864
1116181
158025
1132
16
1
111111111111
11213141516
124412832168032
11419116125
13129792740881
118127164
14321640864
1116181
158025
1132
16
1