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A378674 as a triangular array

1
12
132
1324
15243
142635
1625374
15273648
192638475
16210374958
1927311485106
172103841259611
11228311495136107
182133

A378674 as a square array

11111111111111
23354659697128
222222222222
44657610710813
3333333333
5768711811
4444444
8798129
55555
810913
666
1110
7
11111111111111
23354659697128
222222222222
44657610710813
3333333333
5768711811
4444444
8798129
55555
810913
666
1110
7