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A087647 as a simple table

na(n)
11
21
33
41
51
610
720
810
91
101
1122
12113
13190
14113
1522
161
171
1840
19400
201456
212212
221456
23400
2440
251
261
2765
281095
297095
3020760
3129484
3220760
337095
341095
3565
361
371
3898
392541
4026180
41127435
42320034
43433092
44320034
45127435
4626180
472541
4898
491
501
51140
525250
5379870

[1,1,3,1,1,10,20,10,1,1,22,113,190,113,22,1,1,40,
 400,1456,2212,1456,400,40,1,1,65,1095,7095,20760,
 29484,20760,7095,1095,65,1,1,98,2541,26180,127435,
 320034,433092,320034,127435,26180,2541,98,1,1,140,
 5250,79870]