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A124730 as a triangular array

1
12
162
11484
13022244
1625292288
1126114288120728
12542408044083848016
15104942088121215844619216

A124730 as a square array

111111111
26143062126254510
282252114240494
424922888042088
4281204081212
8723841584
88046
16192
16
111111111
26143062126254510
282252114240494
424922888042088
4281204081212
8723841584
88046
16192
16