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A009999 as a triangular array

1
11
121
1341
14981
151627161
16256481321
1736125256243641
184921662510247291281
196434312963125409621872561
1108151224017776156251638465615121

A009999 as a square array

11111111111
12345678910
149162536496481
182764125216343512
1168125662512962401
132243102431257776
164729409615625
1128218716384
12566561
1512
1

A009999 as an upper right triangle

11111111111
12345678910
149162536496481
182764125216343512
1168125662512962401
132243102431257776
164729409615625
1128218716384
12566561
1512
1

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Last modified September 24 21:01 EDT 2020. Contains 337321 sequences. (Running on oeis4.)