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A141184
as a simple table
n
a(n)
1
19
2
31
3
61
4
79
5
109
6
139
7
151
8
181
9
199
10
211
11
229
12
241
13
271
14
331
[19,31,61,79,109,139,151,181,199,211,229,241,271, 331]