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A100100 as a triangular array

1
11
321
10631
35201041
12670351551
462252126562161
1716924462210842871
6435343217167923301203681
24310128706435300312874951654591
9237848620243101144050052002

A100100 as a square array

1131035126462171664352431092378
126207025292434321287048620
1310351264621716643524310
141556210792300311440
15218433012875005
16281204952002
1736165
1845
19
1
1131035126462171664352431092378
126207025292434321287048620
1310351264621716643524310
141556210792300311440
15218433012875005
16281204952002
1736165
1845
19
1