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A051289 as a triangular array

1
21
442
812123
163248246
32801601206010
6419248048036012020
12844813441680168084028035
25610243584537667204480224056070
512230492161612824192

A051289 as a square array

1248163264128256512
1412328019244810242304
21248160480134435849216
3241204801680537616128
6603601680672024192
101208404480
202802240
35560
70
1248163264128256512
1412328019244810242304
21248160480134435849216
3241204801680537616128
6603601680672024192
101208404480
202802240
35560
70

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Last modified September 21 04:44 EDT 2024. Contains 376079 sequences. (Running on oeis4.)