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A057451 as a simple table

na(n)
16
213
341
4179
51063
68527
787803
81128889
917624813
10326851121
117069067389
12175650481151
134952019383323
14156740126985437
155519908106212193
16214616508361122337
179150317141480822981

[6,13,41,179,1063,8527,87803,1128889,17624813,
 326851121,7069067389,175650481151,4952019383323,
 156740126985437,5519908106212193,
 214616508361122337,9150317141480822981]