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A210229 as a triangular array

1
21
431
7841
12181351
2038351961
337686592671
54147197164913481
882774304202811324391
143512904101479244718353101
232932184623382087137167324564

A210229 as a square array

12471220335488143232
138183876147277512932
141335861974309041846
15195916442010142338
1626912817922087
17341324471371
1843183673
1953245
11064
1
12471220335488143232
138183876147277512932
141335861974309041846
15195916442010142338
1626912817922087
17341324471371
1843183673
1953245
11064
1