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A165541 as a simple table

na(n)
11
22
36
422
589
6379
71664
87460
933977
10156727
11730619
123436710
1316291842
1477758962
15373369867
161802399037
178742691627
1842590945206
19208300979739
201022385319050
215034470059883
2224865173540949
23123147075005750

[1,2,6,22,89,379,1664,7460,33977,156727,730619,
 3436710,16291842,77758962,373369867,1802399037,
 8742691627,42590945206,208300979739,1022385319050,
 5034470059883,24865173540949,123147075005750]