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A258997 as a triangular array

0
00
000
0010
00420
00121240
0032543230
00802161923070
0019281010242258440
0044829165120150075656120
001024102062457693756048588192120

A258997 as a square array

00000000000
0000000000
0141232801924481024
021254216810291610206
04321921024512024576
033022515009375
07847566048
0456588
012192
012
0
00000000000
0000000000
0141232801924481024
021254216810291610206
04321921024512024576
033022515009375
07847566048
0456588
012192
012
0