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A072768 as a triangular array

1
22
333
3443
44544
455554
4565654
45666654
456676654
5566776655
56667776665
567677776765
5677777777765
56778777787765

A072768 as a square array

12334444455555
2344555556666
345566666777
34556666677
4566777778
456677777
45667777
4566777
456677
56778
5677
567
56
5

A072768 as an upper right triangle

12334444455555
2344555556666
345566666777
34556666677
4566777778
456677777
45667777
4566777
456677
56778
5677
567
56
5

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)