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A128315 as a triangular array

1
01
2-21
-14-31
2-46-41
04-910-51
2-615-2015-61
-211-2436-3521-71
3-1029-5670-5628-81
06-3080-125126-8436-91
2-1045-120210-252210-12045-101
-218-67176-335463-462330-16555-111

A128315 as a square array

102-1202-2302-2
1-24-44-611-106-1018
1-36-915-2429-3045-67
1-410-2036-5680-120176
1-515-3570-125210-335
1-621-56126-252463
1-728-84210-462
1-836-120330
1-945-165
1-1055
1-11
1
102-1202-2302-2
1-24-44-611-106-1018
1-36-915-2429-3045-67
1-410-2036-5680-120176
1-515-3570-125210-335
1-621-56126-252463
1-728-84210-462
1-836-120330
1-945-165
1-1055
1-11
1