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A121574 as a triangular array

1
21
451
81681
164437111
3211213467141
64272424305106171
12864012321168584154201
2561472337639922641998211231
51233288864125921044252211574277261

A121574 as a square array

1248163264128256512
15164411227264014723328
1837134424123233768864
111673051168399212592
114106584264110442
1171549985221
1202111574
123277
126
1

A121574 as an upper right triangle

1248163264128256512
15164411227264014723328
1837134424123233768864
111673051168399212592
114106584264110442
1171549985221
1202111574
123277
126
1

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Last modified April 17 14:32 EDT 2021. Contains 343063 sequences. (Running on oeis4.)