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A055896 as a triangular array

1
12
165
1143015
13012515052
162450975780203
11261505525072804263877
12544830255155460053998245564140
15101512511655036145253713840517414904021147
1102246650

A055896 as a square array

1111111111
261430621262545101022
530125450150548301512546650
15150975525025515116550
52780728054600361452
203426353998537138
87724556405174
4140149040
21147

A055896 as an upper right triangle

1111111111
261430621262545101022
530125450150548301512546650
15150975525025515116550
52780728054600361452
203426353998537138
87724556405174
4140149040
21147

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Last modified March 28 14:38 EDT 2024. Contains 371254 sequences. (Running on oeis4.)