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A128047 as a triangular array

1
-23
-515
-8-687
-11-182199
-14-35-20253411
-17-57-655695313

A128047 as a square array

1-2-5-8-11-14-17
31-6-18-35-57
582-20-65
719255
9346953
1113
1-2-5-8-11-14-17
31-6-18-35-57
582-20-65
719255
9346953
1113