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A081454 as a triangular array

1
14
128
1236
12346
123469
12356810
123456810
1234568910
123456791014
12345789101214
123456789121415
12345678910111422

A081454 as a square array

1111111111111
422222222222
83333333333
6445444444
666555555
98666766
10887877
1099988
10101099
14121210
141411
1514
22

A081454 as an upper right triangle

1111111111111
422222222222
83333333333
6445444444
666555555
98666766
10887877
1099988
10101099
14121210
141411
1514
22

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Last modified April 25 21:09 EDT 2024. Contains 371989 sequences. (Running on oeis4.)