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A001639 as a simple table

na(n)
11
21
34
49
516
622
736
865
9112
10186
11309
12522
13885
141492
152509
164225
177124
1812010
1920236
2034094
2157453
2296823
23163163
24274946
25463316
26780755
271315687
282217112
293736129
306295887
3110609441
3217878369
3330127497
3450768954
3585552651
36144167958
37242942778

[1,1,4,9,16,22,36,65,112,186,309,522,885,1492,
 2509,4225,7124,12010,20236,34094,57453,96823,
 163163,274946,463316,780755,1315687,2217112,
 3736129,6295887,10609441,17878369,30127497,
 50768954,85552651,144167958,242942778]