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A005818 as a simple table

na(n)
13
27
39
411
513
615
717
819
921
1023
1125
1227
1329
1431
1533
1635
1737
1839
1941
2043
2145
2247
2349
2451
2553
2655
2757
2859
2961
3063
3165
3267
3369
3471
3573
3675
3777
3879
3981
4083
4185
4287
4389
4491
4593
4695
4797
4899
49101
50103
51105
52107
53109
54111
55113
56115
57117
58119
59121
60123
61125
62127
63129
64131

[3,7,9,11,13,15,17,19,21,23,25,27,29,31,33,35,37,
 39,41,43,45,47,49,51,53,55,57,59,61,63,65,67,69,
 71,73,75,77,79,81,83,85,87,89,91,93,95,97,99,101,
 103,105,107,109,111,113,115,117,119,121,123,125,
 127,129,131]