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A263913 as a triangular array

5
00
331633
0000
2615282399528261
000000
224114112252097320148252097141122241
00000000
19845359200294520711519309443942413891519309442945207135920019845
0000000000

A263913 as a square array

50330261022410198450
016052801411203592000
330239902520970294520710
0528032014801519309440
261025209703942413890
01411201519309440
22410294520710
03592000
198450
0
50330261022410198450
016052801411203592000
330239902520970294520710
0528032014801519309440
261025209703942413890
01411201519309440
22410294520710
03592000
198450
0