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A136996
as a simple table
n
a(n)
1
1
2
2
3
11
4
12
5
21
6
421
7
1214171
8
2777177421
[1,2,11,12,21,421,1214171,2777177421]
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Last modified August 29 21:34 EDT 2024. Contains 375518 sequences. (Running on oeis4.)