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A036874 as a simple table

na(n)
10
20
30
40
50
60
70
80
90
100
110
121
130
140
151
160
173
181
190
203
212
227
233
242
257
266
2716
287
296
3018
3116
3233
3318
3416
3539
3639
3768
3840
3940
4084
4187
42142
4387
4491
45179
46184
47292
48187
49196
50372
51383
52591
53389
54416
55754
56769
571180
58791
59848
601508
611517
622297
631583
641692
652936
662943
674377
683091
693309
705606
715605
728185
735917
746342

[0,0,0,0,0,0,0,0,0,0,0,1,0,0,1,0,3,1,0,3,2,7,3,2,
 7,6,16,7,6,18,16,33,18,16,39,39,68,40,40,84,87,
 142,87,91,179,184,292,187,196,372,383,591,389,416,
 754,769,1180,791,848,1508,1517,2297,1583,1692,
 2936,2943,4377,3091,3309,5606,5605,8185,5917,6342]