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A263666 as a triangular array

1
12
122
1242
12472
1241082
1241022122
124103240162
12410329570242
1241032122208133322
1241032122422486254482
124103212254412221064482642
1241032

A263666 as a square array

1111111111111
222222222222
24444444444
271010101010101010
2822323232323232
2124095122122122
21670208422544
2241334861222
2322541064
248482
264
2

A263666 as an upper right triangle

1111111111111
222222222222
24444444444
271010101010101010
2822323232323232
2124095122122122
21670208422544
2241334861222
2322541064
248482
264
2

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Last modified May 8 19:26 EDT 2024. Contains 372341 sequences. (Running on oeis4.)