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A049789 as a simple table

na(n)
50
60
70
80
90
100
111
120
135
145
157
164
177
1810
196
209
2114
2210
2317
2410
2514
2616
2724
2812
2919
3020
3124
3218
3332
3416
3525
3623
3730
3831
3933
4019
4131
4234
4343
4428
4545
4626
4741
4837
4937
5041
5161
5227
5344
5439
5549
5641
5763
5847
5958
6035
6148
6254
6376
6437
6561
6668
6765
6846
6965

[0,0,0,0,0,0,1,0,5,5,7,4,7,10,6,9,14,10,17,10,14,
 16,24,12,19,20,24,18,32,16,25,23,30,31,33,19,31,
 34,43,28,45,26,41,37,37,41,61,27,44,39,49,41,63,
 47,58,35,48,54,76,37,61,68,65,46,65]