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A005595 as a simple table

na(n)
01
12
24
37
413
523
646
788
8186
9395
10880
111989
124644
1310934
1426210
1563319
16154377
17378443
18933022
192308956
205735371
2114286907
2235683814
2389324137
24224057918
25563033978
261417210456
273572641303
289018885121
2922796905055
3057692673962
31146167385344
32370710166434

[1,2,4,7,13,23,46,88,186,395,880,1989,4644,10934,
 26210,63319,154377,378443,933022,2308956,5735371,
 14286907,35683814,89324137,224057918,563033978,
 1417210456,3572641303,9018885121,22796905055,
 57692673962,146167385344,370710166434]