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A220066 as a simple table

na(n)
14
219
3134
4878
55609
636011
7231343
81483999
99515200
1060996453
11390995240
122506299034
1316065358056
14102978135046
15660082481027
164231075253651
1727120831228945
18173842158021918
191114312870464367
207142646492038739

[4,19,134,878,5609,36011,231343,1483999,9515200,
 60996453,390995240,2506299034,16065358056,
 102978135046,660082481027,4231075253651,
 27120831228945,173842158021918,1114312870464367,
 7142646492038739]