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A185054 as a simple table

na(n)
01
11
22
37
435
5226
61780
716489
8175191
92095995
1027844858
11406243180
126451271440
13110696475526
142039751769020
1540151423775525
16840515332739587
1718638310752208047
18436301221978291734
1910748794565787775575
20277935932581614865791
217524554625329583923280

[1,1,2,7,35,226,1780,16489,175191,2095995,
 27844858,406243180,6451271440,110696475526,
 2039751769020,40151423775525,840515332739587,
 18638310752208047,436301221978291734,
 10748794565787775575,277935932581614865791,
 7524554625329583923280]