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A057689 as a simple table

na(n)
216
366
450
5672
620372
7494
836918
91404
1012210
114248
125070
131682
141850
152210
1635882
17102720
1894484303672
1930084
20178992
215330
22246560
236890
24294253314
258416400
26515202
27134004
282810784
292810883506682183650
30377198408
31320168

[16,66,50,672,20372,494,36918,1404,12210,4248,
 5070,1682,1850,2210,35882,102720,94484303672,
 30084,178992,5330,246560,6890,294253314,8416400,
 515202,134004,2810784,2810883506682183650,
 377198408,320168]