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A209377 as a simple table

na(n)
116
234
364
4156
5320
6840
71792
84848
910496
1028704
1162464
12171456
13373760
141027200
152240512
166160128
1713438976
1836954624
1980625664
20221715456
21483737600
221330268160
232902392832
247981559808
2517414291456
2647889260544
27104485617664

[16,34,64,156,320,840,1792,4848,10496,28704,62464,
 171456,373760,1027200,2240512,6160128,13438976,
 36954624,80625664,221715456,483737600,1330268160,
 2902392832,7981559808,17414291456,47889260544,
 104485617664]