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A214871 as a triangular array

1
34
627
118912
181351419
272015162128
38292210233039
5140312425324152
665342331734435467
83685544353645566984
102857057462647587186103
123

A214871 as a square array

13611182738516683102123
42813202940536885
795152231425570
1214161024334457
19212325173546
283032343626
3941434547
52545658
676971
8486
103
13611182738516683102123
42813202940536885
795152231425570
1214161024334457
19212325173546
283032343626
3941434547
52545658
676971
8486
103