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A352686 as a triangular array

1
11
123
13411
1451442
1561751176
1672060207808
17823692389294015
18926782691050453821423
191029873001171506123892122035
1101132963311292558426361134646738424

A352686 as a square array

11111111111
12345678910
34567891011
1114172023262932
42516069788796
176207238269300331
808929105011711292
4015453850615584
214232389226361
122035134646
738424
11111111111
12345678910
34567891011
1114172023262932
42516069788796
176207238269300331
808929105011711292
4015453850615584
214232389226361
122035134646
738424