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A200152 as a simple table

n a(n)
1 1
2 7
3 25
4 107
5 381
6 1589
7 5153
8 18809
9 68813
10 256859
11 883247
12 4997167
13 12448095
14 76804553
15 181129817
16 522024177
17 1884097881
18 16163873397
19 38888615377
20 239811969005 

[1,7,25,107,381,1589,5153,18809,68813,256859,
 883247,4997167,12448095,76804553,181129817,
 522024177,1884097881,16163873397,38888615377,
 239811969005]

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)