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A276663 as a simple table

na(n)
15
211
339
4139
58215
6131103
7524323
82147483707
92305843009213694071
10618970019642690137449562287
11162259276829213363391578010288339
12170141183460469231731687303715884105979

[5,11,39,139,8215,131103,524323,2147483707,
 2305843009213694071,618970019642690137449562287,
 162259276829213363391578010288339,
 170141183460469231731687303715884105979]