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A379221 as a triangular array

1
1321
3123335
5740343973
121845961805137
1331549189918311765397
18327534011401739433025475
403233143997665753741232159695
30779195945970916177936557377635855
38158391250110447179651838910707132615299901
7414953952527083242074946524339272951009345371837

A379221 as a square array

1133157121133183403307381741
21233403845154927532331791958394953
354399611899401143995945125019525
7380518314017766597091044727083
137176539437537161771796524207
3973025412393651838949465
475215957371070724339
69576351326127295
855529910093
9014537
1837
1133157121133183403307381741
21233403845154927532331791958394953
354399611899401143995945125019525
7380518314017766597091044727083
137176539437537161771796524207
3973025412393651838949465
475215957371070724339
69576351326127295
855529910093
9014537
1837