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A194905 as a triangular array

1
12
123
1234
12345
123456
1234567
81234567
819234567
81921034567
8192103114567
819210311412567
81921031141251367
819

A194905 as a square array

11111118888888
2222221111111
333332999999
4444322222
5554310101010
66543333
7654111111
765444
7651212
7655
7613
76
7

A194905 as an upper right triangle

11111118888888
2222221111111
333332999999
4444322222
5554310101010
66543333
7654111111
765444
7651212
7655
7613
76
7

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Last modified April 25 10:34 EDT 2024. Contains 371967 sequences. (Running on oeis4.)