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A007644 as a simple table

na(n)
153
271
3103
4107
5109
6149
7151
8157
9163
10167
11173
12181
13191
14193
15197
16199
17223
18233
19263
20271
21277
22281
23293
24311
25313
26317
27331
28347
29349
30353
31359
32367
33373
34379
35383
36389
37397
38401
39409
40419
41421
42433
43439
44443
45449
46457
47461
48463
49467
50479
51487
52491

[53,71,103,107,109,149,151,157,163,167,173,181,
 191,193,197,199,223,233,263,271,277,281,293,311,
 313,317,331,347,349,353,359,367,373,379,383,389,
 397,401,409,419,421,433,439,443,449,457,461,463,
 467,479,487,491]