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A230840 as a triangular array

0
00
020
022220
01626561620
01202164961649612020
08974416540136184241654089740
0669901055026411429739211429739210550264669900
05000182671654689617769208320027690309617769208

A230840 as a square array

000000000
02221621202897466990500018
0226561649641654010550264267165468
01621649613618421142973929617769208
0120241654011429739232002769030
08974105502649617769208
066990
0
000000000
02221621202897466990500018
0226561649641654010550264267165468
01621649613618421142973929617769208
0120241654011429739232002769030
08974105502649617769208
066990
0

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Last modified September 21 13:55 EDT 2024. Contains 376087 sequences. (Running on oeis4.)