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A219158 as a triangular array

1
21
331
4241
54451
632351
7555551
84525471
963663671
10564246561
117666666761
1264362634571
13877666677671

A219158 as a square array

12345678910111213
132435465768
14425536647
1535264637
155562666
15434626
1766666
175636
16747
1657
176
17
1

A219158 as an upper right triangle

12345678910111213
132435465768
14425536647
1535264637
155562666
15434626
1766666
175636
16747
1657
176
17
1

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Last modified February 18 15:30 EST 2020. Contains 332019 sequences. (Running on oeis4.)