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A218824 as a simple table

n a(n)
0 1
1 1
2 2
3 9
4 57
5 421
6 3593
7 34557
8 366832
9 4251094
10 53238166
11 714702779
12 10221402872
13 154913725486
14 2477047085038
15 41629752595369
16 732956458329580
17 13480858878123068
18 258362762534442843
19 5148079352377053578
20 106437899659055825010
21 2279307634231962670724

[1,1,2,9,57,421,3593,34557,366832,4251094,
 53238166,714702779,10221402872,154913725486,
 2477047085038,41629752595369,732956458329580,
 13480858878123068,258362762534442843,
 5148079352377053578,106437899659055825010,
 2279307634231962670724]

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Last modified November 27 07:28 EST 2021. Contains 349365 sequences. (Running on oeis4.)