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A027537 as a triangular array

1
31
19161
201319551
3131829628161561
66883274089158774182543991
186610311233692101377232064028990939601
655990895594026877388159492400803552132027548182122231
2826880471

A027537 as a square array

13192013131668831866103655990892826880471
116319829627408911233692559402687
155281615877410137723738815949
1156182542064028240080355
13999909321320275
1960481821
12223
1
13192013131668831866103655990892826880471
116319829627408911233692559402687
155281615877410137723738815949
1156182542064028240080355
13999909321320275
1960481821
12223
1