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A209479 as a simple table

n a(n)
1 1
2 3
3 4
4 15
5 38
6 136
7 458
8 1781
9 6912
10 28141
11 115761
12 485607
13 2056341
14 8800541
15 37945282
16 164766522
17 719617100
18 3159529303
19 13936202144 

[1,3,4,15,38,136,458,1781,6912,28141,115761,
 485607,2056341,8800541,37945282,164766522,
 719617100,3159529303,13936202144]

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