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A074027 as a simple table

n a(n)
1 1
2 0
3 0
4 0
5 1
6 2
7 5
8 8
9 15
10 24
11 45
12 80
13 155
14 288
15 550
16 1024
17 1935
18 3626
19 6885
20 13056
21 24940
22 47616
23 91225
24 174760
25 335626
26 645120
27 1242600
28 2396160
29 4627915
30 8947294
31 17318945
32 33554432
33 65076240
34 126320640
35 245424829
36 477211280
37 928638035
38 1808400384
39 3524082400

[1,0,0,0,1,2,5,8,15,24,45,80,155,288,550,1024,
 1935,3626,6885,13056,24940,47616,91225,174760,
 335626,645120,1242600,2396160,4627915,8947294,
 17318945,33554432,65076240,126320640,245424829,
 477211280,928638035,1808400384,3524082400]

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)