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A000427 as a simple table

n a(n)
1 1
2 8
3 36
4 148
5 554
6 2024
7 7134
8 24796
9 84625
10 285784
11 953430
12 3151332
13 10314257
14 33457972
15 107557792
16 342732670
17 1082509680
18 3389190112
19 10518508294
20 32361863632 

[1,8,36,148,554,2024,7134,24796,84625,285784,
 953430,3151332,10314257,33457972,107557792,
 342732670,1082509680,3389190112,10518508294,
 32361863632]

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)