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A055208 as a triangular array

1
21
341
4981
51627161
6256481321
736125256243641
84921662510247291281
96434312963125409621872561
18151224017776156251638465615121
217294096168074665678125

A055208 as a square array

12345678912
1491625364964811
182764125216343512729
11681256625129624014096
13224310243125777616807
16472940961562546656
112821871638478125
12566561
1512
1

A055208 as an upper right triangle

12345678912
1491625364964811
182764125216343512729
11681256625129624014096
13224310243125777616807
16472940961562546656
112821871638478125
12566561
1512
1

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Last modified August 30 18:13 EDT 2024. Contains 375545 sequences. (Running on oeis4.)