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A209575 as a triangular array

1
11
151
15151
1523371
152389831
15231052951771
15231054478733671
1523105479172123837491
152310547921216015613715151
1523105479218588471936915143

A209575 as a square array

11111111111
1555555555
11523232323232323
13789105105105105105
183295447479479479
1177873172121212185
1367238360158847
1749613719369
1151515143
1

A209575 as an upper right triangle

11111111111
1555555555
11523232323232323
13789105105105105105
183295447479479479
1177873172121212185
1367238360158847
1749613719369
1151515143
1

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Last modified October 22 15:55 EDT 2021. Contains 348172 sequences. (Running on oeis4.)