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A001649 as a simple table

na(n)
11
23
37
415
526
657
7106
8207
9403
10788
111530
122985
135812
1411322
1522052
1642959
1783675
18162993
19317491
20618440
211204651
222346534
234570791
248903409
2517342876
2633782050
2765803777
28128178646
29249678140
30486346022
31947349461
321845334319
333594511719
347001720167

[1,3,7,15,26,57,106,207,403,788,1530,2985,5812,
 11322,22052,42959,83675,162993,317491,618440,
 1204651,2346534,4570791,8903409,17342876,33782050,
 65803777,128178646,249678140,486346022,947349461,
 1845334319,3594511719,7001720167]