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A230915 as a triangular array

0
00
000
0000
00000
028000
08164118000
032165057141506000
01181769415435222176820028000
04402006544725576165154689144134271450000
016642327434148720522

A230915 as a square array

00000000000
000028321184401664
00081641650176942006542327434
00011857141543524725576148720522
000150622176816515468
000200289144134
000271450
000
00
0
00000000000
000028321184401664
00081641650176942006542327434
00011857141543524725576148720522
000150622176816515468
000200289144134
000271450
000
00
0