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A032100 as a simple table

n a(n)
1 1
2 3
3 8
4 18
5 54
6 152
7 472
8 1410
9 4310
10 12952
11 39144
12 117554
13 353590
14 1061208
15 3186488
16 9560866
17 28691286
18 86078168
19 258260680
20 774795090
21 2324463926
22 6973431064
23 20920529304
24 62761705922
25 188285826262
26 564857832984

[1,3,8,18,54,152,472,1410,4310,12952,39144,117554,
 353590,1061208,3186488,9560866,28691286,86078168,
 258260680,774795090,2324463926,6973431064,
 20920529304,62761705922,188285826262,564857832984]

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Last modified April 21 19:16 EDT 2021. Contains 343156 sequences. (Running on oeis4.)