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A261363 as a triangular array

1
12
112
1234
11112
122234
1122334
12345678
111111112
1222222234
11222222334
123444445678
11112222

A261363 as a square array

1111111111111
212121212121
23122312231
4122412241
233512242
43612242
4712242
812242
2335
436
47
8
1111111111111
212121212121
23122312231
4122412241
233512242
43612242
4712242
812242
2335
436
47
8