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A215477 as a simple table

n a(n)
1 4
2 6
3 9
4 34
5 123
6 789
7 901
8 1234
9 34567
10 56789
11 901234
12 1234567
13 7890123
14 567890123
15 12345678901
16 345678901234567
17 4567890123456789
18 12345678901234567
19 890123456789012345
20 3456789012345678901
21 456789012345678901234
22 123456789012345678901234567
23 1234567890123456789012345678901
24 23456789012345678901234567890123

[4,6,9,34,123,789,901,1234,34567,56789,901234,
 1234567,7890123,567890123,12345678901,
 345678901234567,4567890123456789,
 12345678901234567,890123456789012345,
 3456789012345678901,456789012345678901234,
 123456789012345678901234567,
 1234567890123456789012345678901,
 23456789012345678901234567890123]

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Last modified April 3 15:51 EDT 2020. Contains 333197 sequences. (Running on oeis4.)