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A140097 as a simple table

na(n)
11
21
33
412
560
6346
72218
815444
9115075
10908155
117535185
1265374018
13590579575
145537249212
1553742567000
16538801229874
175570060420573
1859288164937748
19648934780013375
207295904025820975
2184174136470742517
22995682428049720830

[1,1,3,12,60,346,2218,15444,115075,908155,7535185,
 65374018,590579575,5537249212,53742567000,
 538801229874,5570060420573,59288164937748,
 648934780013375,7295904025820975,
 84174136470742517,995682428049720830]