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A046209 as a simple table

na(n)
11
21
32
46
516
638
7104
8270
9726
101960
115368
1214736
1340880
14113828
15318848
16896670
172532160
187174050
1920390552
2058112088
21166037248
22475467916
231364393896
243922624800
2511297181456
2632588003000
2794143178098
28272342710380
29788854912240
302287679084096
316641649422408
3219302293185470

[1,1,2,6,16,38,104,270,726,1960,5368,14736,40880,
 113828,318848,896670,2532160,7174050,20390552,
 58112088,166037248,475467916,1364393896,
 3922624800,11297181456,32588003000,94143178098,
 272342710380,788854912240,2287679084096,
 6641649422408,19302293185470]