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A007326 as a simple table

n a(n)
0 0
1 0
2 0
3 0
4 0
5 0
6 1
7 3
8 8
9 19
10 40
11 83
12 176
13 365
14 775
15 1643
16 3483
17 7299
18 15170
19 31010
20 62563
21 124221
22 243296
23 469856
24 896491
25 1690475
26 3155551
27 5834871
28 10701036
29 19479021
30 35227889
31 63335778
32 113286272
33 201687929
34 357585904
35 631574315
36 1111614614
37 1950096758
38 3410420973
39 5946337698
40 10337420278
41 17918573379
42 30968896662
43 53366449357
44 91689380979
45 157058043025
46 268210414468
47 456613323892

[0,0,0,0,0,0,1,3,8,19,40,83,176,365,775,1643,3483,
 7299,15170,31010,62563,124221,243296,469856,
 896491,1690475,3155551,5834871,10701036,19479021,
 35227889,63335778,113286272,201687929,357585904,
 631574315,1111614614,1950096758,3410420973,
 5946337698,10337420278,17918573379,30968896662,
 53366449357,91689380979,157058043025,268210414468,
 456613323892]

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Last modified March 29 00:26 EDT 2024. Contains 371264 sequences. (Running on oeis4.)