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A213427 as a simple table

n a(n)
1 1
2 1
3 2
4 6
5 18
6 74
7 314
8 1614
9 8650
10 52794
11 337410
12 2373822
13 17327770
14 136539154
15 1115206818
16 9671306438
17 86529147794
18 816066328602
19 7904640819682
20 80089651530566
21 832008919174434
22 8983256694817802
23 99219778649809162
24 1134999470682805134
25 13241030890523397154

[1,1,2,6,18,74,314,1614,8650,52794,337410,2373822,
 17327770,136539154,1115206818,9671306438,
 86529147794,816066328602,7904640819682,
 80089651530566,832008919174434,8983256694817802,
 99219778649809162,1134999470682805134,
 13241030890523397154]

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Last modified May 13 09:49 EDT 2024. Contains 372504 sequences. (Running on oeis4.)