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A212954 as a triangular array

1
11
121
1331
14641
159951
1614181461
171825251871
1823

A212954 as a square array

111111111
12345678
1369141823
1491825
151425
1618
17
1

A212954 as an upper right triangle

111111111
12345678
1369141823
1491825
151425
1618
17
1

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Last modified December 6 18:03 EST 2019. Contains 329809 sequences. (Running on oeis4.)