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A228146 as a triangular array

-3
-5-1
-9-5-3
-17-3-5-1
-33-17-9-1-3
-65-11-17-3-5-1
-129-65-33-17-9-5-3
-257-43-65-11-17-1-5-1
-513-257-129-13-33-17-9-1-3
-1025-171-257-43-65-11-17-3-5-1

A228146 as a square array

-3-5-9-17-33-65-129-257-513-1025
-1-5-3-17-11-65-43-257-171
-3-5-9-17-33-65-129-257
-1-1-3-17-11-13-43
-3-5-9-17-33-65
-1-5-1-17-11
-3-5-9-17
-1-1-3
-3-5
-1
-3-5-9-17-33-65-129-257-513-1025
-1-5-3-17-11-65-43-257-171
-3-5-9-17-33-65-129-257
-1-1-3-17-11-13-43
-3-5-9-17-33-65
-1-5-1-17-11
-3-5-9-17
-1-1-3
-3-5
-1