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A124733 as a triangular array

1
21
551
152181
518646111
18835523580141
73114881140489123171
2950633553972730875175201
1223527352252561446255301420236231
518221195471175827417232472100262151306261

A124733 as a square array

125155118873129501223551822
1521863551488633527352119547
18462351140539725256117582
1118048927301446274172
114123875553032472
117175142010026
1202362151
123306
126
1
125155118873129501223551822
1521863551488633527352119547
18462351140539725256117582
1118048927301446274172
114123875553032472
117175142010026
1202362151
123306
126
1