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A241926 as a triangular array

1
11
121
1221
13431
135531
14710741
141014141041
15122226221251
1515304242301551
161943668066431961
1622559913213299552261

A241926 as a square array

111111111111
12233445566
124571012151922
135101422304355
1371426426699
1410224280132
14123066132
15154399
151955
1622
16
1
111111111111
12233445566
124571012151922
135101422304355
1371426426699
1410224280132
14123066132
15154399
151955
1622
16
1