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A267211 as a simple table

na(n)
01
11
25
32
47
57
610
75
813
912
1013
1111
1218
1315
1419
1516
1621
1721
1824
1919
2027
2126
2227
2325
2432
2529
2633
2730
2835
2935
3038
3133
3241
3340
3441
3539
3646
3743
3847
3944
4049
4149
4252
4347
4455
4554
4655
4753
4860
4957
5061
5158
5263
5363
5466
5561
5669
5768
5869
5967
6074
6171
6275
6372
6477
6577

[1,1,5,2,7,7,10,5,13,12,13,11,18,15,19,16,21,21,
 24,19,27,26,27,25,32,29,33,30,35,35,38,33,41,40,
 41,39,46,43,47,44,49,49,52,47,55,54,55,53,60,57,
 61,58,63,63,66,61,69,68,69,67,74,71,75,72,77,77]