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A002447 as a simple table

n a(n)
0 1
1 0
2 2
3 3
4 4
5 12
6 17
7 36
8 70
9 123
10 248
11 456
12 865
13 1656
14 3098
15 5907
16 11164
17 21108
18 40049
19 75708
20 143422
21 271563
22 513968
23 973392
24 1842625
25 3488688
26 6605426
27 12505251
28 23676916
29 44826780
30 84869585
31 160684308

[1,0,2,3,4,12,17,36,70,123,248,456,865,1656,3098,
 5907,11164,21108,40049,75708,143422,271563,513968,
 973392,1842625,3488688,6605426,12505251,23676916,
 44826780,84869585,160684308]

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Last modified April 17 23:23 EDT 2024. Contains 371767 sequences. (Running on oeis4.)