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A328884 as a simple table

na(n)
01
12
26
334
4250
5972
615498
7109544
85961306
954891535
102488870076
11246264587430
12118503860254
1316917328320424
1431020551370600
15459016311081816
1625084010473396186126
1722789919291848918932
183423598216929042597
1982480361346228654485320
2012440086312584102532500
21121292379506812780007192

[1,2,6,34,250,972,15498,109544,5961306,54891535,
 2488870076,246264587430,118503860254,
 16917328320424,31020551370600,459016311081816,
 25084010473396186126,22789919291848918932,
 3423598216929042597,82480361346228654485320,
 12440086312584102532500,121292379506812780007192]