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A178630 as a simple table

n a(n)
1 18
2 2178
3 221778
4 22217778
5 2222177778
6 222221777778
7 22222217777778
8 2222222177777778
9 222222221777777778
10 22222222217777777778
11 2222222222177777777778
12 222222222221777777777778 

[18,2178,221778,22217778,2222177778,222221777778,
 22222217777778,2222222177777778,
 222222221777777778,22222222217777777778,
 2222222222177777777778,222222222221777777777778]

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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)