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A338557 as a simple table

na(n)
1273
2399
3609
4741
5777
6903
71113
81131
91281
101443
111491
121653
131659
141677
151729
161869
172067
182109
192121
202247
212373
222379
232451
242639
252751
262769
272919
283021
293081
303171
313219
323367
333423
343471
353477
363633
373741
383801
393857
403913
413939
424047
434053
444173

[273,399,609,741,777,903,1113,1131,1281,1443,1491,
 1653,1659,1677,1729,1869,2067,2109,2121,2247,2373,
 2379,2451,2639,2751,2769,2919,3021,3081,3171,3219,
 3367,3423,3471,3477,3633,3741,3801,3857,3913,3939,
 4047,4053,4173]