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A251745 as a simple table

n a(n)
0 0
1 1
2 0
3 0
4 0
5 0
6 0
7 0
8 1
9 2
10 3
11 6
12 12
13 24
14 48
15 96
16 192
17 383
18 764
19 1525
20 3044
21 6076
22 12128
23 24208
24 48320
25 96448
26 192513
27 384262
28 766999
29 1530954
30 3055832
31 6099536
32 12174864
33 24301408
34 48506368
35 96820223
36 193256184
37 385745369
38 769959784
39 1536863736
40 3067627936

[0,1,0,0,0,0,0,0,1,2,3,6,12,24,48,96,192,383,764,
 1525,3044,6076,12128,24208,48320,96448,192513,
 384262,766999,1530954,3055832,6099536,12174864,
 24301408,48506368,96820223,193256184,385745369,
 769959784,1536863736,3067627936]

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Last modified July 10 03:00 EDT 2024. Contains 374194 sequences. (Running on oeis4.)