A109357 - OEIS

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A109357 as a simple table

n	a(n)
1	1
2	21
3	73
4	81
5	127
6	157
7	159
8	181
9	211
10	213
11	217
12	259
13	267
14	271
15	273
16	283
17	289
18	301
19	303
20	321
21	327
22	337
23	369
24	409
25	423
26	457
27	477
28	507
29	523
30	537
31	553
32	559
33	597
34	603
35	621
36	631
37	651
38	691
39	699
40	727
41	799
42	807
43	817
44	843
45	849
46	867
47	877
48	897
49	909
50	919
51	927
52	967
53	969
54	981
55	993
56	997
57	1017
58	1021
59	1047

[1,21,73,81,127,157,159,181,211,213,217,259,267, 271,273,283,289,301,303,321,327,337,369,409,423, 457,477,507,523,537,553,559,597,603,621,631,651, 691,699,727,799,807,817,843,849,867,877,897,909, 919,927,967,969,981,993,997,1017,1021,1047]