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A018985 as a simple table

na(n)
22
38
444
5192
61120
76399
837026
9234776
101511252
1110094812
1269021059
13478380828
143345830521
1523526339472
16166108021408

[2,8,44,192,1120,6399,37026,234776,1511252,
 10094812,69021059,478380828,3345830521,
 23526339472,166108021408]