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A107028 as a simple table

na(n)
01
13
25
39
419
549
6155
7591
82651
913689
1080009
11522193
123762273
1329629483
14252966249
152325176147
1622874076091
17239615657133
182661015200515
1931207545002577
20385191232715737
214988767088734625
2267615869255979521

[1,3,5,9,19,49,155,591,2651,13689,80009,522193,
 3762273,29629483,252966249,2325176147,22874076091,
 239615657133,2661015200515,31207545002577,
 385191232715737,4988767088734625,
 67615869255979521]