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A000222 as a simple table

n a(n)
0 0
1 0
2 1
3 3
4 6
5 38
6 213
7 1479
8 11692
9 104364
10 1036809
11 11344859
12 135548466
13 1755739218
14 24504637741
15 366596136399
16 5852040379224
17 99283915922264
18 1783921946910417
19 33840669046326579
20 675849838112277598
21 14174636583759324798

[0,0,1,3,6,38,213,1479,11692,104364,1036809,
 11344859,135548466,1755739218,24504637741,
 366596136399,5852040379224,99283915922264,
 1783921946910417,33840669046326579,
 675849838112277598,14174636583759324798]

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Last modified April 25 13:12 EDT 2024. Contains 371969 sequences. (Running on oeis4.)