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A337207 as a simple table

na(n)
11
25
315
441
5107
6273
7707
81817
94617
1011867
1130425
1276857
13197603
14505871
151275465
163276563
178406527
1821165273
1954338627
20139513379
21351447657
22901789811
232304725075
245840498937
2514978318243
2638107010435
2797141424265
28248995117523
29630641012147

[1,5,15,41,107,273,707,1817,4617,11867,30425,
 76857,197603,505871,1275465,3276563,8406527,
 21165273,54338627,139513379,351447657,901789811,
 2304725075,5840498937,14978318243,38107010435,
 97141424265,248995117523,630641012147]