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A166378 as a triangular array

1
01
201
0601
1201201
06002001
150018003001
01050042004201
341604200084005601
0307440126000151207201
12465001537200315000252009001

A166378 as a square array

1020120150034160124650
106060010500307440
10120180042000153720
102004200126000
10300840031500
1042015120
105602520
10720
1090
10
1
1020120150034160124650
106060010500307440
10120180042000153720
102004200126000
10300840031500
1042015120
105602520
10720
1090
10
1