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A195915 as a triangular array

1
21
331
4021
54231
616121
7777331
80004021
980044231
10180406121
1111984467331
12021120214021
13122313122354231

A195915 as a square array

12345678910111213
13041708111012
12267008922
1317000813
12344441213
130404012
1226622
131713
12345
1304
122
13
1
12345678910111213
13041708111012
12267008922
1317000813
12344441213
130404012
1226622
131713
12345
1304
122
13
1

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Last modified September 23 00:23 EDT 2024. Contains 376140 sequences. (Running on oeis4.)