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A255515 as a simple table

na(n)
01
11
21
32
44
55
69
717
826
946
1087
11137
12246
13474
14791
151420
162783
174839
188806
1917361
2031252
2157613
22114497
23211496
24395637
25791597
261495016
272834242
285710510
2910986325
3021101677
3142796060
3283674582
33162695172
34332141014
35658589710
361295551257
372661881254

[1,1,1,2,4,5,9,17,26,46,87,137,246,474,791,1420,
 2783,4839,8806,17361,31252,57613,114497,211496,
 395637,791597,1495016,2834242,5710510,10986325,
 21101677,42796060,83674582,162695172,332141014,
 658589710,1295551257,2661881254]