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A343237 as a triangular array

1
11
131
1751
1151971
131653791
16321117561111
112766578136991131
1255205933672101671127151
15116305141971152946511105169171

A343237 as a square array

1111111111
137153163127255511
15196521166520596305
1737175781336714197
1961369210111529
111916714651
1131271105
115169
117
1
1111111111
137153163127255511
15196521166520596305
1737175781336714197
1961369210111529
111916714651
1131271105
115169
117
1