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A221609 as a simple table

na(n)
10
21
30
42
52
60
74
810
94
100
118
1253
1354
148
150
1616
17269
18811
19287
2016
210
2232
231378
2411344
2512270
261522
2732
280
2964
307057
31160999
32472974
33184193
348072
3564
360
37128
3836152
392286878
4018561474
4119521328
422764070
4342810
44128
450
46256
47185192
4832522604

[0,1,0,2,2,0,4,10,4,0,8,53,54,8,0,16,269,811,287,
 16,0,32,1378,11344,12270,1522,32,0,64,7057,160999,
 472974,184193,8072,64,0,128,36152,2286878,
 18561474,19521328,2764070,42810,128,0,256,185192,
 32522604]