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A187883 as a triangular array

1
21
431
6531
98631
12119631
16151310631
2019171410631
252422191510631
30292724201510631
3635333026211510631

A187883 as a square array

12469121620253036
1358111519242935
13691317222733
1361014192430
13610152026
136101521
1361015
13610
136
13
1

A187883 as an upper right triangle

12469121620253036
1358111519242935
13691317222733
1361014192430
13610152026
136101521
1361015
13610
136
13
1

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Last modified July 27 20:33 EDT 2021. Contains 346308 sequences. (Running on oeis4.)