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A166453 as a triangular array

1
21
201
4221
20001
420021
4020201
84424221
200000001
4200000021
40200000201

A166453 as a square array

12242448244
1020204020
120024002
10002000
1224000
102000
12000
1000
122
10
1

A166453 as an upper right triangle

12242448244
1020204020
120024002
10002000
1224000
102000
12000
1000
122
10
1

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Last modified April 25 07:07 EDT 2024. Contains 371964 sequences. (Running on oeis4.)