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A339710 as a simple table

na(n)
01
17
281
31051
414353
5201807
62891409
741976627
8615371169
99089130967
10135048608401
112016306678987
1230224723308081
13454603719479839
146857319231939537
15103694587800440931
161571449259865571137
1723860205774602899111
18362897293035114695121
195527773456878667951483

[1,7,81,1051,14353,201807,2891409,41976627,
 615371169,9089130967,135048608401,2016306678987,
 30224723308081,454603719479839,6857319231939537,
 103694587800440931,1571449259865571137,
 23860205774602899111,362897293035114695121,
 5527773456878667951483]