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A007548 as a simple table

n a(n)
1 1
2 1
3 1
4 1
5 2
6 5
7 15
8 53
9 213
10 961
11 4808
12 26405
13 157965
14 1022573
15 7122441
16 53118601
17 422362118
18 3566967917
19 31887812715
20 300848966213
21 2987359924149
22 31143724848889
23 340113005563268
24 3882897830626949
25 46254432194746377
26 573938743829923349
27 7406289665830324689

[1,1,1,1,2,5,15,53,213,961,4808,26405,157965,
 1022573,7122441,53118601,422362118,3566967917,
 31887812715,300848966213,2987359924149,
 31143724848889,340113005563268,3882897830626949,
 46254432194746377,573938743829923349,
 7406289665830324689]

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Last modified February 17 02:33 EST 2019. Contains 320200 sequences. (Running on oeis4.)