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A129240 as a triangular array

1
22
403
6504
90305
1294406
16030507
2014490608
2508050709
3020496608010

A129240 as a square array

124691216202530
20509014020
30343484
4040909
505056
60606
7070
808
90
10

A129240 as an upper right triangle

124691216202530
20509014020
30343484
4040909
505056
60606
7070
808
90
10

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Last modified September 20 11:50 EDT 2021. Contains 347586 sequences. (Running on oeis4.)