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A253223 as a triangular array

0
00
101
3113
69196
102519192510
1549102191024915
21812632682682638121
281215041249268124950412128
36169825314035683568314082516936
452251226598616028356816028

A253223 as a square array

00136101521283645
0019254981121169225
111191022635048251226
391919268124931405986
625102268268356816028
1049263124935683568
1581504314016028
21121825
28169
36
00136101521283645
0019254981121169225
111191022635048251226
391919268124931405986
625102268268356816028
1049263124935683568
1581504314016028
21121825
28169
36