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A057009 as a simple table

na(n)
11
27
341
4235
51361
67987
747321
8281995
91685921
1010096867
1160524201
12362972155
132177309681
1413062280147
1578368930681
16470199300715
172821152888641
1816926788453827
19101560343826761
20609360901747675
213656161925798801
2221936961098633907
23131621735219132441

[1,7,41,235,1361,7987,47321,281995,1685921,
 10096867,60524201,362972155,2177309681,
 13062280147,78368930681,470199300715,
 2821152888641,16926788453827,101560343826761,
 609360901747675,3656161925798801,
 21936961098633907,131621735219132441]