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A045740 as a simple table

n a(n)
1 1
2 3
3 12
4 62
5 370
6 2397
7 16345
8 115376
9 834786
10 6152285
11 45990120
12 347673108
13 2652283517
14 20385035972
15 157656007680
16 1225743120520
17 9572972899946
18 75056029550721
19 590469939950716
20 4659115833115680
21 36859770507695688

[1,3,12,62,370,2397,16345,115376,834786,6152285,
 45990120,347673108,2652283517,20385035972,
 157656007680,1225743120520,9572972899946,
 75056029550721,590469939950716,4659115833115680,
 36859770507695688]

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Last modified September 25 10:51 EDT 2021. Contains 347654 sequences. (Running on oeis4.)