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A230898 as a simple table

na(n)
10
2186
33706
4190364
58554562
6400106488
718831479468
8887265863604
941898727967522
101978685791204552
1193492250825825256
124417805614428299566
13208779099851162991776
149866957125308860636000
15466327790501046362443268

[0,186,3706,190364,8554562,400106488,18831479468,
 887265863604,41898727967522,1978685791204552,
 93492250825825256,4417805614428299566,
 208779099851162991776,9866957125308860636000,
 466327790501046362443268]