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A149352 as a simple table

na(n)
01
11
24
312
442
5157
6637
72501
810164
942658
10180400
11764722
123307143
1314430374
1462996763
15276911209
161228976451
175469146618
1824404767964
19109552267142
20493669549335
212227647563738
2210084056179245
2345818706625373
24208578109286625
25951168969946909
264349255976194362
2719927255165939965

[1,1,4,12,42,157,637,2501,10164,42658,180400,
 764722,3307143,14430374,62996763,276911209,
 1228976451,5469146618,24404767964,109552267142,
 493669549335,2227647563738,10084056179245,
 45818706625373,208578109286625,951168969946909,
 4349255976194362,19927255165939965]