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A342819 as a triangular array

4
47
6910
6111213
813161716
81518212019
10172225262522
1019242930312825
122128333637363328
12233037404342413631
1425344146495049464134
142736455055565754514437

A342819 as a square array

446688101012121414
79111315171921232527
10121618222428303436
131721252933374145
1620263036404650
19253137434955
222836425056
2533414957
28364654
314151
3444
37
446688101012121414
79111315171921232527
10121618222428303436
131721252933374145
1620263036404650
19253137434955
222836425056
2533414957
28364654
314151
3444
37