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A122460 as a triangular array

4
76
1099
13121212
1717151515
222119201818
25242424222321
3129272727272526
353333323030303030
38383736363533333534
4342404140393938383739
5047454543

A122460 as a square array

4710131722253135384350
69121721242933384247
9121519242733374045
121520242732364145
1518222730364043
182327303539
2125303339
26303338
303538
3437
39

A122460 as an upper right triangle

4710131722253135384350
69121721242933384247
9121519242733374045
121520242732364145
1518222730364043
182327303539
2125303339
26303338
303538
3437
39

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Last modified September 21 00:14 EDT 2021. Contains 347596 sequences. (Running on oeis4.)