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A171243 as a triangular array

1
11
511
21611
9325711
42111229811
193751013233911
90172357606153371011
42349110092819709175411111
20027751840132333324819198451211

A171243 as a square array

11521934211937901742349200277
1162511251023571100951840
11729132606281913233
118331537093324
11937175819
111041198
111145
1112
11
1
11521934211937901742349200277
1162511251023571100951840
11729132606281913233
118331537093324
11937175819
111041198
111145
1112
11
1