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A200465 as a simple table

n a(n)
1 5
2 15
3 45
4 135
5 405
6 1213
7 3627
8 10846
9 32429
10 96970
11 289870
12 866499
13 2590128
14 7742621
15 23144448
16 69183744
17 206804024
18 618180094
19 1847865864
20 5523643627
21 16511274210
22 49355507149
23 147533484214
24 441007079909
25 1318258258809

[5,15,45,135,405,1213,3627,10846,32429,96970,
 289870,866499,2590128,7742621,23144448,69183744,
 206804024,618180094,1847865864,5523643627,
 16511274210,49355507149,147533484214,441007079909,
 1318258258809]

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Last modified October 17 06:07 EDT 2021. Contains 348048 sequences. (Running on oeis4.)