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A209919 as a triangular array

0
31
422
6343
86666
1491110119
20181818181818
3630333034303330
605656585656585656
10899105991051001059910599
188186186186186186186186186186186
352335344338346335348335346338344335
632630630630630630630630630630630630630
11821161117911611179116111791162117911611179116111791161
219221822182218821822184218821822182218821842182218821822182

A209919 as a square array

034681420366010818835263211822192
123691830569918633563011612182
2461118335610518634463011792182
36101830589918633863011612188
61118345610518634663011792182
918305610018633563011612184
18335810518634863011792188
30569918633563011622182
5610518634663011792182
9918633863011612188
18634463011792184
33563011612182
63011792188
11612182
2182

A209919 as an upper right triangle

034681420366010818835263211822192
123691830569918633563011612182
2461118335610518634463011792182
36101830589918633863011612188
61118345610518634663011792182
918305610018633563011612184
18335810518634863011792188
30569918633563011622182
5610518634663011792182
9918633863011612188
18634463011792184
33563011612182
63011792188
11612182
2182

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Last modified April 25 12:15 EDT 2024. Contains 371969 sequences. (Running on oeis4.)