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A021774 as a simple table

na(n)
01
120
2271
33150
434041
5354480
63620611
736607010
8368161981
93692428740
1036979730151
11370080107670
123702237477121
1337029646251800
14370333177834891
153703516786589130
1637036098633715461
17370365663082767660

[1,20,271,3150,34041,354480,3620611,36607010,
 368161981,3692428740,36979730151,370080107670,
 3702237477121,37029646251800,370333177834891,
 3703516786589130,37036098633715461,
 370365663082767660]