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A164808
as a simple table
n
a(n)
1
-1
2
0
3
3
4
11
5
7
6
15
7
14
8
17
9
23
10
17
11
27
12
43
13
37
14
47
15
57
16
117
17
127
18
143
19
137
20
147
21
157
22
243
23
237
24
247
25
257
26
357
27
447
28
457
[-1,0,3,11,7,15,14,17,23,17,27,43,37,47,57,117, 127,143,137,147,157,243,237,247,257,357,447,457]
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Last modified April 19 23:15 EDT 2024. Contains 371798 sequences. (Running on oeis4.)