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A354555 as a triangular array

1
12
122
1244
12468
12481216
1248142432
124816284864
124816305696128
1248163260112192256
1248163262120224384512
12481632641242404487681024

A354555 as a square array

111111111111
22222222222
2444444444
468888888
812141616161616
16242830323232
324856606264
6496112120124
128192224240
256384448
512768
1024
111111111111
22222222222
2444444444
468888888
812141616161616
16242830323232
324856606264
6496112120124
128192224240
256384448
512768
1024