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A162843 as a simple table

na(n)
13
29
315
421
527
645
751
863
9189
1093
1199
12495
13153
14189
15195
16219
17255
181023
19297
2013803
216307
22381
23387
24765
25495
262457
27585
281533
29693
30765
31771
32819
33891
3420345
35975
361023
3720805
384953
391161
402015
4169601
4225251
431365
44157785
4519305
461533
471539
482805

[3,9,15,21,27,45,51,63,189,93,99,495,153,189,195,
 219,255,1023,297,13803,6307,381,387,765,495,2457,
 585,1533,693,765,771,819,891,20345,975,1023,20805,
 4953,1161,2015,69601,25251,1365,157785,19305,1533,
 1539,2805]