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A237080 as a simple table

na(n)
117644
2395028
38844156
4199693088
54496960188
6102542293272
72324982572036
852641678435760
91191029384833872
1027054806554620800
11613654869527336800
1213904072629662225940
13315001521952900210424
147146256853516182973272

[17644,395028,8844156,199693088,4496960188,
 102542293272,2324982572036,52641678435760,
 1191029384833872,27054806554620800,
 613654869527336800,13904072629662225940,
 315001521952900210424,7146256853516182973272]