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A031437 as a simple table

n a(n)
0 1
1 1
2 1
3 2
4 2
5 2
6 4
7 3
8 4
9 9
10 14
11 33
12 839
13 2041
14 22192

[1,1,1,2,2,2,4,3,4,9,14,33,839,2041,22192]

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Last modified January 22 22:16 EST 2020. Contains 331166 sequences. (Running on oeis4.)