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A002430 as a simple table

n a(n)
1 1
2 1
3 2
4 17
5 62
6 1382
7 21844
8 929569
9 6404582
10 443861162
11 18888466084
12 113927491862
13 58870668456604
14 8374643517010684
15 689005380505609448
16 129848163681107301953
17 1736640792209901647222
18 418781231495293038913922

[1,1,2,17,62,1382,21844,929569,6404582,443861162,
 18888466084,113927491862,58870668456604,
 8374643517010684,689005380505609448,
 129848163681107301953,1736640792209901647222,
 418781231495293038913922]

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Last modified May 27 05:40 EDT 2018. Contains 304690 sequences. (Running on oeis4.)