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A213615 as a triangular array

1
2-1
6-61
2-310
30-60300-1
6-15100-10
42-1261050-2101
6-21210-7010
30-1201400-700200-1
10-45600-420200-30
66-3304950-46203300-9905
6-33

A213615 as a square array

12623064263010666
-1-6-3-60-15-126-21-120-45-330-33
1130101052114060495
00000000
-1-1-21-7-70-42-462
000000
112020330
0000
-1-3-99
00
5
12623064263010666
-1-6-3-60-15-126-21-120-45-330-33
1130101052114060495
00000000
-1-1-21-7-70-42-462
000000
112020330
0000
-1-3-99
00
5