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A002024 as a triangular array

1
22
333
4444
55555
666666
7777777
88888888
999999999
10101010101010101010
1111111111111111111111
121212121212121212121212
131313131313

A002024 as a square array

12345678910111213
2345678910111213
345678910111213
45678910111213
5678910111213
678910111213
789101112
89101112
9101112
101112
1112
12

A002024 as an upper right triangle

12345678910111213
2345678910111213
345678910111213
45678910111213
5678910111213
678910111213
789101112
89101112
9101112
101112
1112
12

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Last modified November 14 04:47 EST 2019. Contains 329108 sequences. (Running on oeis4.)