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A022405 as a simple table

n a(n)
1 0
2 1
3 2
4 2
5 3
6 4
7 10
8 37
9 366
10 13532
11 4952675
12 67019597734
13 331926286207224918
14 22245566178948766568816183137
15 7383888166355511098764350563784314022618210032 

[0,1,2,2,3,4,10,37,366,13532,4952675,67019597734,
 331926286207224918,22245566178948766568816183137,
 7383888166355511098764350563784314022618210032]

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Last modified April 25 07:41 EDT 2024. Contains 371964 sequences. (Running on oeis4.)