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A153721 as a simple table

na(n)
17
27
338
4318
5393
6396
7484
82076
92619
104099
115264
128556
1318070
1420732
1527209
1673351
17356362

[7,7,38,318,393,396,484,2076,2619,4099,5264,8556,
 18070,20732,27209,73351,356362]