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A244888 as a triangular array

1
-21
6-61
-2336-151
106-229160-371
-5671574-1566650-931
3434-1170615248-93102572-2381
-2313793831-151933123814-5213610175-6161

A244888 as a square array

1-26-23106-5673434-23137
1-636-2291574-1170693831
1-15160-156615248-151933
1-37650-9310123814
1-932572-52136
1-23810175
1-616
1
1-26-23106-5673434-23137
1-636-2291574-1170693831
1-15160-156615248-151933
1-37650-9310123814
1-932572-52136
1-23810175
1-616
1