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A020094 as a simple table

n a(n)
0 1
1 1
2 1
3 1
4 1
5 3
6 13
7 74
8 519
9 4193
10 38084
11 384011
12 4256113
13 51428024
14 672849974
15 9475970455
16 142929221024
17 2298778304797
18 39270796040273
19 710146895061598
20 13551969914092153
21 272168729108017393
22 5738224038694033365

[1,1,1,1,1,3,13,74,519,4193,38084,384011,4256113,
 51428024,672849974,9475970455,142929221024,
 2298778304797,39270796040273,710146895061598,
 13551969914092153,272168729108017393,
 5738224038694033365]

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Last modified March 28 16:12 EDT 2024. Contains 371254 sequences. (Running on oeis4.)