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A188645 as a triangular array

1
31
1791
99161191
5772889721331
336351841273792177511
1960193024910396811436495201731
1142431669264139480499947865753045110657991
6658572995372891499219281625447713541008011555849196011291

A188645 as a square array

131799577336319601114243665857
1916128895184193024916692641299537289
119721273791039681394804991499219281
13321771436499478657625447713
151520153045154100801
173106571555849
19919601
1129
1
131799577336319601114243665857
1916128895184193024916692641299537289
119721273791039681394804991499219281
13321771436499478657625447713
151520153045154100801
173106571555849
19919601
1129
1