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A086273 as a triangular array

1
13
147
151013
16131921
1716253131
181931414643
19223751616457
11025436176858573
1112849719110611310991
112315581106127141145136111
113346191121148

A086273 as a square array

111111111111
345678910111213
7101316192225283134
131925313743495561
2131415161718191
3146617691106121
436485106127148
5785113141
73109145
91136
111
111111111111
345678910111213
7101316192225283134
131925313743495561
2131415161718191
3146617691106121
436485106127148
5785113141
73109145
91136
111