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A299962 as a triangular array

1
22
333
3644
341255
6552466
712664877
3924779688
9514489819299
318618961093841010
763672819211107681111
1297728363841211

A299962 as a square array

1233367393712
2364512951869
34125624146367
4524674818772
56487996288
679681019236
78192911384
893841012
91076811
1011
11
1233367393712
2364512951869
34125624146367
4524674818772
56487996288
679681019236
78192911384
893841012
91076811
1011
11