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A260502 as a simple table

na(n)
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300
310
320
330
340
351
360
371
380
393
401
414
424
435
443
456
465
476
482
493
503
518
527
539
548
5511
568
5710
5810
5911
6011
6113
6212
6314
647
6511
6611
6712
6813
6915
7016
7117
7214
7317
7417
7520
7618
7720
7821
7922
8019
8120
8221
8322
8421
8527
8626
8729
8826
8929

[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
 0,0,0,0,0,0,0,0,0,0,1,0,1,0,3,1,4,4,5,3,6,5,6,2,3,
 3,8,7,9,8,11,8,10,10,11,11,13,12,14,7,11,11,12,13,
 15,16,17,14,17,17,20,18,20,21,22,19,20,21,22,21,
 27,26,29,26,29]