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A337996 as a triangular array

1
01
00-4
0-2026
0080352912
0160-1936-11552-40368
00-3904-38528-176832-560896-1424960
0-272029729631502081718788865931008201796240

A337996 as a square array

10000000
10-20160-272
-40800-39040
26352-1936-38528297296
912-11552-1768323150208
-40368-56089617187888
-142496065931008
201796240
10000000
10-20160-272
-40800-39040
26352-1936-38528297296
912-11552-1768323150208
-40368-56089617187888
-142496065931008
201796240