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A209424 as a triangular array

1
11
131
112121
176347761
170120429204297011
18477191966010707908191966084771
1126126259227625920397877492039787742592276251261261
12223278474846182911209912923693672078431500368

A209424 as a square array

111111111
13127670184771261262223278
11234720429191966025922762547484618291
1762042910707908920397877412099129236936
17011919660920397877472078431500368
18477259227625
1126126
1
111111111
13127670184771261262223278
11234720429191966025922762547484618291
1762042910707908920397877412099129236936
17011919660920397877472078431500368
18477259227625
1126126
1