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A131830 as a triangular array

1
22
323
4334
54645
65101056
7615201567
872135352178
98285670562889
10936841261268436910
111045120210252210120451011
121155165330462462330165551112

A131830 as a square array

123456789101112
2234567891011
33610152128364555
441020355684120165
55153570126210330
662156126252462
772884210462
8836120330
9945165
101055
1111
12
123456789101112
2234567891011
33610152128364555
441020355684120165
55153570126210330
662156126252462
772884210462
8836120330
9945165
101055
1111
12