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A307214 as a triangular array

1
11
321
10731
35261241
12699491851
462382201802561
171614868253511203371
64355812338415245601704281
243102281913866656225618402315291

A307214 as a square array

11310351264621716643524310
12726993821486581222819
131249201825338413866
14188035115246562
15251205602561
1633170840
1742231
1852
19
1
11310351264621716643524310
12726993821486581222819
131249201825338413866
14188035115246562
15251205602561
1633170840
1742231
1852
19
1