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A141971 as a simple table

na(n)
143
271
3127
4211
5239
6379
7463
8491
9547
10631
11659
12743
13827
14883
15911
16967
171051
181163
191303
201471
211499
221583
231667
241723
252003
262087
272143
282311
292339
302423
312591
322647
332731
342843
352927
363011
373067
383319
393347
403571
413739
423767
433823
443851
453907
464019

[43,71,127,211,239,379,463,491,547,631,659,743,
 827,883,911,967,1051,1163,1303,1471,1499,1583,
 1667,1723,2003,2087,2143,2311,2339,2423,2591,2647,
 2731,2843,2927,3011,3067,3319,3347,3571,3739,3767,
 3823,3851,3907,4019]