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A276616 as a triangular array

1
31
441
5651
77861
91391071
101621111281
11182531131491
13192836431516101
1525294049571718111
162841415464731920121
17304561557081912122131
183148668571881001112324141

A276616 as a square array

13457910111315161718
14671316181925283031
158921252829414548
161011313640416166
1712134349545585
18141557647071
191617738188
110181991100
1112021111
1122223
11324
114
1
13457910111315161718
14671316181925283031
158921252829414548
161011313640416166
1712134349545585
18141557647071
191617738188
110181991100
1112021111
1122223
11324
114
1