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A026750 as a simple table

na(n)
21
39
458
5329
61753
79020
845442
9225860
101112543
115446607
1226550968
13129042976
14625860205
153031021096
1614664729519
1770906318405
18342717456708
191656208470644
208003645557573
2138681730323747
22186985728069661
23904119336235884

[1,9,58,329,1753,9020,45442,225860,1112543,
 5446607,26550968,129042976,625860205,3031021096,
 14664729519,70906318405,342717456708,
 1656208470644,8003645557573,38681730323747,
 186985728069661,904119336235884]