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A147272 as a simple table

n a(n)
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 1
9 1
10 5
11 13
12 25
13 49
14 141
15 407
16 1043
17 2925
18 11783
19 52869
20 254667
21 1211663

[1,1,1,1,1,1,1,1,1,5,13,25,49,141,407,1043,2925,
 11783,52869,254667,1211663]

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Last modified January 24 01:05 EST 2020. Contains 331178 sequences. (Running on oeis4.)