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A056023 as a triangular array

1
23
654
78910
1514131211
161718192021
28272625242322
2930313233343536
454443424140393837
46474849505152535455
6665646362616059585756

A056023 as a square array

126715162829454666
35814172730444765
4913182631434864
1012192532424963
11202433415062
212334405161
2235395260
36385359
375458
5557
56
126715162829454666
35814172730444765
4913182631434864
1012192532424963
11202433415062
212334405161
2235395260
36385359
375458
5557
56