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A338873 as a triangular array

1
-11
1-11
-11-11
10-1-11
-1-11-19-11
1011-53-19-11
-1143-3113-709-713-11
10-289349-28813-63367-629-11
-1-1-313174947-46721-34877471-351541-1493-11
10-581704101-20744051-2449743889-176710589-18054401-36287-11

A338873 as a square array

1-11-11-11-11-11
1-110-1010-10
1-1-111143-289-313-581
1-1-19-53-3113349174947704101
1-1-19-709-28813-46721-20744051
1-1-713-63367-34877471-2449743889
1-1-629-351541-176710589
1-1-1493-18054401
1-1-36287
1-1
1
1-11-11-11-11-11
1-110-1010-10
1-1-111143-289-313-581
1-1-19-53-3113349174947704101
1-1-19-709-28813-46721-20744051
1-1-713-63367-34877471-2449743889
1-1-629-351541-176710589
1-1-1493-18054401
1-1-36287
1-1
1