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A087512 as a simple table

n a(n)
0 41
1 14441411
2 41414411
3 44114141
4 1144141441
5 1144144411
6 1144441141
7 1411414441
8 1441411441
9 1441444111
10 1444114141
11 4111144441
12 4111444411
13 4114414141
14 4141141441
15 4141144141
16 4144111441
17 4411114441
18 4411144141
19 4411414411
20 4414141141
21 4414441111

[41,14441411,41414411,44114141,1144141441,
 1144144411,1144441141,1411414441,1441411441,
 1441444111,1444114141,4111144441,4111444411,
 4114414141,4141141441,4141144141,4144111441,
 4411114441,4411144141,4411414411,4414141141,
 4414441111]

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Last modified August 14 17:57 EDT 2024. Contains 375166 sequences. (Running on oeis4.)