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A141665 as a triangular array

1
10
10-1
10-30
10-601
10-10050
10-150150-1
10-210350-70
10-280700-2801
10-3601260-84090
10-4502100-2100450-1

A141665 as a square array

11111111111
0000000000
-1-3-6-10-15-21-28-36-45
00000000
15153570126210
000000
-1-7-28-84-210
0000
1945
00
-1
11111111111
0000000000
-1-3-6-10-15-21-28-36-45
00000000
15153570126210
000000
-1-7-28-84-210
0000
1945
00
-1