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A134483 as a triangular array

1
34
567
78910
910111213
111213141516
13141516171819
1516171819202122
171819202122232425
19202122232425262728

A134483 as a square array

135791113151719
468101214161820
79111315171921
10121416182022
131517192123
1618202224
19212325
222426
2527
28
135791113151719
468101214161820
79111315171921
10121416182022
131517192123
1618202224
19212325
222426
2527
28