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A105620 as a triangular array

1
-11
-2-21
-10-4-31
-74-20-7-41
-706-148-39-11-51
-8162-1412-315-70-16-61
-110410-16324-3243-635-116-22-71
-1708394-220820-40167-7264-1183-180-29-81
-29752066-3416788-579159-99191-15065-2049-265-37-91

A105620 as a square array

1-1-2-10-74-706-8162-110410-1708394-29752066
1-2-4-20-148-1412-16324-220820-3416788
1-3-7-39-315-3243-40167-579159
1-4-11-70-635-7264-99191
1-5-16-116-1183-15065
1-6-22-180-2049
1-7-29-265
1-8-37
1-9
1
1-1-2-10-74-706-8162-110410-1708394-29752066
1-2-4-20-148-1412-16324-220820-3416788
1-3-7-39-315-3243-40167-579159
1-4-11-70-635-7264-99191
1-5-16-116-1183-15065
1-6-22-180-2049
1-7-29-265
1-8-37
1-9
1