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A090151 as a simple table

n a(n)
1 3
2 31
3 37
4 311
5 311111
6 31111111111
7 311111111111
8 377777777777
9 31111111111111
10 377777777777777777
11 31111111111111111111111111111111111
12 311111111111111111111111111111111111111111111111 

[3,31,37,311,311111,31111111111,311111111111,
 377777777777,31111111111111,377777777777777777,
 31111111111111111111111111111111111,
 311111111111111111111111111111111111111111111111]

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Last modified August 27 12:59 EDT 2024. Contains 375469 sequences. (Running on oeis4.)