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A210862 as a triangular array

1
21
322
4673
51520165
6315763378
7561532151848113
89237068477151317121
9141805202828982603135435134
102051598551510084115828319341570355
112862940

A210862 as a square array

1234567891011
12615315692141205286
27205715337080515982940
3166321568420285515
537184771289810084
881513260311582
1317113548319
213513415
34703
55
1234567891011
12615315692141205286
27205715337080515982940
3166321568420285515
537184771289810084
881513260311582
1317113548319
213513415
34703
55