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A160987 as a simple table

na(n)
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
171
181
191
201
211
221
231
241
251
261
271
281
291
301
311
321
331
342
351
362
371
382
391
402
411
422
431
442
451
462
471
482
491
502
513
523
533
545
554
565
576
586
596
608
617
628
639
649
659
6611
6710
6813
6913
7013
7114
7217
7315
7417
7518
7619
7719
7821
7920
8023
8123
8223
8324
8427
8528
8628
8730
8831
8932
9035
9134
9236
9338
9438
9540
9642
9742
9843
9945
10047
10147
10253
10351

[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,
 1,1,1,1,1,1,1,1,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,
 2,3,3,3,5,4,5,6,6,6,8,7,8,9,9,9,11,10,13,13,13,14,
 17,15,17,18,19,19,21,20,23,23,23,24,27,28,28,30,
 31,32,35,34,36,38,38,40,42,42,43,45,47,47,53,51]