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A154558 as a triangular array

1
12
144
16129
18243621
110409010551
11260180315306127
114843157351071889323
1161125041470285635562584835
11814475626466426106681162875152188

A154558 as a square array

1111111111
24681012141618
41224406084112144
93690180315504756
2110531573514702646
51306107128566426
127889355610668
323258411628
8357515
2188
1111111111
24681012141618
41224406084112144
93690180315504756
2110531573514702646
51306107128566426
127889355610668
323258411628
8357515
2188