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A147294 as a simple table

na(n)
11
21
31
42
53
62
75
89
910
107
1114
1228
1340
1449
1531
1642
1790
18150
19245
20279
21162
22132
23297
24550
251078
261674
271782
28968
29429
301001
312002
324459
338463
3412474
3512584
366481
371430
383432
397280
4017836
4139060
4271280
43100672
4497215
4547893

[1,1,1,2,3,2,5,9,10,7,14,28,40,49,31,42,90,150,
 245,279,162,132,297,550,1078,1674,1782,968,429,
 1001,2002,4459,8463,12474,12584,6481,1430,3432,
 7280,17836,39060,71280,100672,97215,47893]