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A057728 as a triangular array

1
11
121
1421
18421
1168421
132168421
16432168421
11286432168421
12561286432168421
15122561286432168421
110245122561286432168421
1204810245122561286432168421

A057728 as a square array

1111111111111
124816326412825651210242048
12481632641282565121024
1248163264128256512
1248163264128256
1248163264128
1248163264
12481632
124816
1248
124
12
1

A057728 as an upper right triangle

1111111111111
124816326412825651210242048
12481632641282565121024
1248163264128256512
1248163264128256
1248163264128
1248163264
12481632
124816
1248
124
12
1

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Last modified January 19 12:56 EST 2020. Contains 331049 sequences. (Running on oeis4.)