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A172355 as a triangular array

1
11
111
1551
163061
126156156261
1359101092910351
11364760247522475247601361
120127336191352829192191352273362011
1715143715390904822802780228027803909048143715715

A172355 as a square array

1111111111
11562635136201715
1530156910476027336143715
161561092247521913523909048
1269102475282919222802780
135476019135222802780
1136273363909048
1201143715
1715
1111111111
11562635136201715
1530156910476027336143715
161561092247521913523909048
1269102475282919222802780
135476019135222802780
1136273363909048
1201143715
1715

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Last modified September 23 03:26 EDT 2024. Contains 376142 sequences. (Running on oeis4.)