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A204579 as a triangular array

1
-11
4-51
-3649-141
576-820273-301
-1440021076-76451023-551
518400-773136296296-444733003-911
-2540160038402064-152916402475473-1916207462-1401
1625702400-24831336961017067024-17372191214739153-66918816422-2041

A204579 as a square array

1-14-36576-14400518400-254016001625702400
1-549-82021076-77313638402064-2483133696
1-14273-7645296296-152916401017067024
1-301023-444732475473-173721912
1-553003-19162014739153
1-917462-669188
1-14016422
1-204
1
1-14-36576-14400518400-254016001625702400
1-549-82021076-77313638402064-2483133696
1-14273-7645296296-152916401017067024
1-301023-444732475473-173721912
1-553003-19162014739153
1-917462-669188
1-14016422
1-204
1