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A004115 as a simple table

n a(n)
1 0
2 1
3 1
4 4
5 22
6 178
7 2278
8 46380
9 1578060
10 92765486
11 9676866173
12 1821391854302
13 625710416245358
14 395761853562201960
15 464128290507379386872
16 1015085639712281997464676
17 4160440039279630394986003604
18 32088534920274236421098827156776

[0,1,1,4,22,178,2278,46380,1578060,92765486,
 9676866173,1821391854302,625710416245358,
 395761853562201960,464128290507379386872,
 1015085639712281997464676,
 4160440039279630394986003604,
 32088534920274236421098827156776]

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