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A299772 as a triangular array

1
23
326
411210
5714215
6242218221
715302623228
84241583129236
9268148683736245
10657212488804444255
1140127121142100945253266
12931562321772081141106163278

A299772 as a square array

123456789101112
3211724154226654093
62142230418172127156
10218265848124121232
15223316888142177
212293780100208
282364494114
3624452110
4525361
55263
662
78
123456789101112
3211724154226654093
62142230418172127156
10218265848124121232
15223316888142177
212293780100208
282364494114
3624452110
4525361
55263
662
78