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A131828 as a triangular array

1
64
1459
257716
3999925
561111111136
76131313131349
9915151515151564
1251717171717171781
1541919191919191919100

A131828 as a square array

16142539567699125154
45791113151719
9791113151719
1691113151719
251113151719
3613151719
49151719
641719
8119
100
16142539567699125154
45791113151719
9791113151719
1691113151719
251113151719
3613151719
49151719
641719
8119
100

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Last modified September 21 20:27 EDT 2024. Contains 376089 sequences. (Running on oeis4.)