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A200268
as a simple table
n
a(n)
1
1
2
5
3
7
4
9
5
13
6
13
7
21
8
31
9
19
10
37
11
75
12
139
13
97
14
181
15
101
16
225
17
277
18
505
19
465
20
971
21
225
[1,5,7,9,13,13,21,31,19,37,75,139,97,181,101,225, 277,505,465,971,225]
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Last modified November 28 04:05 EST 2023. Contains 367394 sequences. (Running on oeis4.)