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A213620 as a triangular array

1
2-1
1-10
4-601
1-2010
2-5050-1
1-3050-30
8-280700-84017
1-40140-280170
2-90420-12601530-31
1-50300-12602550-1550
4-2201650-924

A213620 as a square array

121412181214
-1-1-6-2-5-3-28-4-9-5-22
0000000000
115570144230165
00000000
-1-3-84-28-126-126-924
00000
1717153255
000
-31-155
0
121412181214
-1-1-6-2-5-3-28-4-9-5-22
0000000000
115570144230165
00000000
-1-3-84-28-126-126-924
00000
1717153255
000
-31-155
0