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A330019 as a simple table

na(n)
01
11
24
321
4150
51330
614180
7176295
82505230
940049226
10711379872
1113899553206
12296270826852
136841305568812
14170127212242416
154532854743105975
16128824523061126750
173890041395675793930
18124375112406132404960
194197530354920789582410
20149118181703716510545260

[1,1,4,21,150,1330,14180,176295,2505230,40049226,
 711379872,13899553206,296270826852,6841305568812,
 170127212242416,4532854743105975,
 128824523061126750,3890041395675793930,
 124375112406132404960,4197530354920789582410,
 149118181703716510545260]