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A378666 as a triangular array

1
11
1121
11171171
110801053010801
1980188209088209098011
1884527224317166686004072243171884521
1796797587319068749199266601149199266601158731906877967971
17173360476309310660360089838858960326781528764506236008983885896047630931066071733601

A378666 as a square array

111111111
11211710809801884527967977173360
111710530882090722431715873190687476309310660
11080882090666860040491992666011360089838858960
19801722431714919926660113267815287645062
1884525873190687360089838858960
1796797476309310660
17173360
1
111111111
11211710809801884527967977173360
111710530882090722431715873190687476309310660
11080882090666860040491992666011360089838858960
19801722431714919926660113267815287645062
1884525873190687360089838858960
1796797476309310660
17173360
1