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A000704 as a simple table

n a(n)
0 1
1 1
2 1
3 1
4 4
5 16
6 46
7 106
8 316
9 1324
10 5356
11 18316
12 63856
13 272416
14 1264264
15 5409496
16 22302736
17 101343376
18 507711376
19 2495918224
20 11798364736
21 58074029056
22 309240315616
23 1670570920096
24 8792390355904
25 46886941456576
26 264381946998976
27 1533013006902976

[1,1,1,1,4,16,46,106,316,1324,5356,18316,63856,
 272416,1264264,5409496,22302736,101343376,
 507711376,2495918224,11798364736,58074029056,
 309240315616,1670570920096,8792390355904,
 46886941456576,264381946998976,1533013006902976]

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Last modified July 17 04:55 EDT 2024. Contains 374360 sequences. (Running on oeis4.)