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A089308 as a triangular array

1
23
345
45610
56789
67891011
78910111214
89101112141516
91011121314151621
10111213141517181920
1112131415161718192021
121314151617181920212223

A089308 as a square array

123456789101112
345678910111213
567891011121314
1089101112131415
910111213141516
11121414151617
141515171718
1616181819
21191920
202021
2122
23

A089308 as an upper right triangle

123456789101112
345678910111213
567891011121314
1089101112131415
910111213141516
11121414151617
141515171718
1616181819
21191920
202021
2122
23

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Last modified September 19 09:06 EDT 2020. Contains 337178 sequences. (Running on oeis4.)